Indicates that the procedure does not return a result.

A possible value for column PROCEDURE_TYPE in the ResultSet object returned by the method getProcedures.

Indicates that the procedure returns a result.

A possible value for column PROCEDURE_TYPE in the ResultSet object returned by the method getProcedures.

Indicates that type of the column is unknown.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getProcedureColumns.

Indicates that the column stores IN parameters.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getProcedureColumns.

Indicates that the column stores INOUT parameters.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getProcedureColumns.

Indicates that the column stores OUT parameters.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getProcedureColumns.

Indicates that the column stores return values.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getProcedureColumns.

Indicates that the column stores results.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getProcedureColumns.

Indicates that NULL values are not allowed.

A possible value for the column NULLABLE in the ResultSet object returned by the method getProcedureColumns.

Indicates that NULL values are allowed.

A possible value for the column NULLABLE in the ResultSet object returned by the method getProcedureColumns.

Indicates that whether NULL values are allowed is unknown.

A possible value for the column NULLABLE in the ResultSet object returned by the method getProcedureColumns.

Indicates that the column might not allow NULL values.

A possible value for the column NULLABLE in the ResultSet returned by the method getColumns.

Indicates that the column definitely allows NULL values.

A possible value for the column NULLABLE in the ResultSet returned by the method getColumns.

Indicates that the nullability of columns is unknown.

A possible value for the column NULLABLE in the ResultSet returned by the method getColumns.

Indicates that the scope of the best row identifier is very temporary, lasting only while the row is being used.

A possible value for the column SCOPE in the ResultSet object returned by the method getBestRowIdentifier.

Indicates that the scope of the best row identifier is the remainder of the current transaction.

A possible value for the column SCOPE in the ResultSet object returned by the method getBestRowIdentifier.

Indicates that the scope of the best row identifier is the remainder of the current session.

A possible value for the column SCOPE in the ResultSet object returned by the method getBestRowIdentifier.

Indicates that the best row identifier may or may not be a pseudo column.

A possible value for the column PSEUDO_COLUMN in the ResultSet object returned by the method getBestRowIdentifier.

Indicates that the best row identifier is NOT a pseudo column.

A possible value for the column PSEUDO_COLUMN in the ResultSet object returned by the method getBestRowIdentifier.

Indicates that the best row identifier is a pseudo column.

A possible value for the column PSEUDO_COLUMN in the ResultSet object returned by the method getBestRowIdentifier.

Indicates that this version column may or may not be a pseudo column.

A possible value for the column PSEUDO_COLUMN in the ResultSet object returned by the method getVersionColumns.

Indicates that this version column is NOT a pseudo column.

A possible value for the column PSEUDO_COLUMN in the ResultSet object returned by the method getVersionColumns.

Indicates that this version column is a pseudo column.

A possible value for the column PSEUDO_COLUMN in the ResultSet object returned by the method getVersionColumns.

For the column UPDATE_RULE, indicates that when the primary key is updated, the foreign key (imported key) is changed to agree with it. For the column DELETE_RULE, it indicates that when the primary key is deleted, rows that imported that key are deleted.

A possible value for the columns UPDATE_RULE and DELETE_RULE in the ResultSet objects returned by the methods getImportedKeys, getExportedKeys, and getCrossReference.

For the column UPDATE_RULE, indicates that a primary key may not be updated if it has been imported by another table as a foreign key. For the column DELETE_RULE, indicates that a primary key may not be deleted if it has been imported by another table as a foreign key.

A possible value for the columns UPDATE_RULE and DELETE_RULE in the ResultSet objects returned by the methods getImportedKeys, getExportedKeys, and getCrossReference.

For the columns UPDATE_RULE and DELETE_RULE, indicates that when the primary key is updated or deleted, the foreign key (imported key) is changed to NULL.

A possible value for the columns UPDATE_RULE and DELETE_RULE in the ResultSet objects returned by the methods getImportedKeys, getExportedKeys, and getCrossReference.

For the columns UPDATE_RULE and DELETE_RULE, indicates that if the primary key has been imported, it cannot be updated or deleted.

A possible value for the columns UPDATE_RULE and DELETE_RULE in the ResultSet objects returned by the methods getImportedKeys, getExportedKeys, and getCrossReference.

For the columns UPDATE_RULE and DELETE_RULE, indicates that if the primary key is updated or deleted, the foreign key (imported key) is set to the default value.

A possible value for the columns UPDATE_RULE and DELETE_RULE in the ResultSet objects returned by the methods getImportedKeys, getExportedKeys, and getCrossReference.

Indicates deferrability. See SQL-92 for a definition.

A possible value for the column DEFERRABILITY in the ResultSet objects returned by the methods getImportedKeys, getExportedKeys, and getCrossReference.

Indicates deferrability. See SQL-92 for a definition.

A possible value for the column DEFERRABILITY in the ResultSet objects returned by the methods getImportedKeys, getExportedKeys, and getCrossReference.

Indicates deferrability. See SQL-92 for a definition.

A possible value for the column DEFERRABILITY in the ResultSet objects returned by the methods getImportedKeys, getExportedKeys, and getCrossReference.

Indicates that a NULL value is NOT allowed for this data type.

A possible value for column NULLABLE in the ResultSet object returned by the method getTypeInfo.

Indicates that a NULL value is allowed for this data type.

A possible value for column NULLABLE in the ResultSet object returned by the method getTypeInfo.

Indicates that it is not known whether a NULL value is allowed for this data type.

A possible value for column NULLABLE in the ResultSet object returned by the method getTypeInfo.

Indicates that WHERE search clauses are not supported for this type.

A possible value for column SEARCHABLE in the ResultSet object returned by the method getTypeInfo.

Indicates that the data type can be only be used in WHERE search clauses that use LIKE predicates.

A possible value for column SEARCHABLE in the ResultSet object returned by the method getTypeInfo.

Indicates that the data type can be only be used in WHERE search clauses that do not use LIKE predicates.

A possible value for column SEARCHABLE in the ResultSet object returned by the method getTypeInfo.

Indicates that all WHERE search clauses can be based on this type.

A possible value for column SEARCHABLE in the ResultSet object returned by the method getTypeInfo.

Indicates that this column contains table statistics that are returned in conjunction with a table's index descriptions.

A possible value for column TYPE in the ResultSet object returned by the method getIndexInfo.

Indicates that this table index is a clustered index.

A possible value for column TYPE in the ResultSet object returned by the method getIndexInfo.

Indicates that this table index is a hashed index.

A possible value for column TYPE in the ResultSet object returned by the method getIndexInfo.

Indicates that this table index is not a clustered index, a hashed index, or table statistics; it is something other than these.

A possible value for column TYPE in the ResultSet object returned by the method getIndexInfo.

Indicates that NULL values might not be allowed.

A possible value for the column NULLABLE in the ResultSet object returned by the method getAttributes.

Indicates that NULL values are definitely allowed.

A possible value for the column NULLABLE in the ResultSet object returned by the method getAttributes.

Indicates that whether NULL values are allowed is not known.

A possible value for the column NULLABLE in the ResultSet object returned by the method getAttributes.

A possible return value for the method DatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the method SQLException.getSQLState is an X/Open (now know as Open Group) SQL CLI SQLSTATE value.

A possible return value for the method DatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the method SQLException.getSQLState is an SQLSTATE value.

A possible return value for the method DatabaseMetaData.getSQLStateType which is used to indicate whether the value returned by the method SQLException.getSQLState is an SQL99 SQLSTATE value.

Note:This constant remains only for compatibility reasons. Developers should use the constant sqlStateSQL instead.

Indicates that type of the parameter or column is unknown.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getFunctionColumns.

Indicates that the parameter or column is an IN parameter.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getFunctionColumns.

Indicates that the parameter or column is an INOUT parameter.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getFunctionColumns.

Indicates that the parameter or column is an OUT parameter.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getFunctionColumns.

Indicates that the parameter or column is a return value.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getFunctionColumns.

Indicates that the parameter or column is a column in a result set.

A possible value for the column COLUMN_TYPE in the ResultSet returned by the method getFunctionColumns.

Indicates that NULL values are not allowed.

A possible value for the column NULLABLE in the ResultSet object returned by the method getFunctionColumns.

Indicates that NULL values are allowed.

A possible value for the column NULLABLE in the ResultSet object returned by the method getFunctionColumns.

Indicates that whether NULL values are allowed is unknown.

A possible value for the column NULLABLE in the ResultSet object returned by the method getFunctionColumns.

Indicates that it is not known whether the function returns a result or a table.

A possible value for column FUNCTION_TYPE in the ResultSet object returned by the method getFunctions.

Indicates that the function does not return a table.

A possible value for column FUNCTION_TYPE in the ResultSet object returned by the method getFunctions.

Indicates that the function returns a table.

A possible value for column FUNCTION_TYPE in the ResultSet object returned by the method getFunctions.

Retrieves whether the current user can use all the tables returned by the method getTables in a SELECT statement.

Retrieves the URL for this DBMS.

Retrieves the user name as known to this database.

Retrieves whether this database is in read-only mode.

Retrieves whether NULL values are sorted high. Sorted high means that NULL values sort higher than any other value in a domain. In an ascending order, if this method returns true, NULL values will appear at the end. By contrast, the method nullsAreSortedAtEnd indicates whether NULL values are sorted at the end regardless of sort order.

Retrieves whether NULL values are sorted low. Sorted low means that NULL values sort lower than any other value in a domain. In an ascending order, if this method returns true, NULL values will appear at the beginning. By contrast, the method nullsAreSortedAtStart indicates whether NULL values are sorted at the beginning regardless of sort order.

Retrieves whether NULL values are sorted at the start regardless of sort order.

Retrieves whether NULL values are sorted at the end regardless of sort order.

Retrieves the name of this database product.

Retrieves the version number of this database product.

Retrieves the name of this JDBC driver.

Retrieves the version number of this JDBC driver as a String.

Retrieves this JDBC driver's major version number.

Retrieves this JDBC driver's minor version number.

Retrieves whether this database stores tables in a local file.

Retrieves whether this database uses a file for each table.

Retrieves whether this database treats mixed case unquoted SQL identifiers as case sensitive and as a result stores them in mixed case.

Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in upper case.

Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in lower case.

Retrieves whether this database treats mixed case unquoted SQL identifiers as case insensitive and stores them in mixed case.

Retrieves whether this database treats mixed case quoted SQL identifiers as case sensitive and as a result stores them in mixed case.

Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in upper case.

Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in lower case.

Retrieves whether this database treats mixed case quoted SQL identifiers as case insensitive and stores them in mixed case.

Retrieves the string used to quote SQL identifiers. This method returns a space " " if identifier quoting is not supported.

Retrieves a comma-separated list of all of this database's SQL keywords that are NOT also SQL:2003 keywords.

Retrieves a comma-separated list of math functions available with this database. These are the Open /Open CLI math function names used in the JDBC function escape clause.

Retrieves a comma-separated list of string functions available with this database. These are the Open Group CLI string function names used in the JDBC function escape clause.

Retrieves a comma-separated list of system functions available with this database. These are the Open Group CLI system function names used in the JDBC function escape clause.

Retrieves a comma-separated list of the time and date functions available with this database.

Retrieves the string that can be used to escape wildcard characters. This is the string that can be used to escape '_' or '%' in the catalog search parameters that are a pattern (and therefore use one of the wildcard characters).

The '_' character represents any single character; the '%' character represents any sequence of zero or more characters.

Retrieves all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, A-Z, 0-9 and _).

Retrieves whether this database supports ALTER TABLE with add column.

Retrieves whether this database supports ALTER TABLE with drop column.

Retrieves whether this database supports column aliasing.

If so, the SQL AS clause can be used to provide names for computed columns or to provide alias names for columns as required.

Retrieves whether this database supports concatenations between NULL and non-NULL values being NULL.

Retrieves whether this database supports the JDBC scalar function CONVERT for the conversion of one JDBC type to another. The JDBC types are the generic SQL data types defined in java.sql.Types.

Retrieves whether this database supports the JDBC scalar function CONVERT for conversions between the JDBC types fromType and toType. The JDBC types are the generic SQL data types defined in java.sql.Types.

Retrieves whether this database supports table correlation names.

Retrieves whether, when table correlation names are supported, they are restricted to being different from the names of the tables.

Retrieves whether this database supports expressions in ORDER BY lists.

Retrieves whether this database supports using a column that is not in the SELECT statement in an ORDER BY clause.

Retrieves whether this database supports some form of GROUP BY clause.

Retrieves whether this database supports using a column that is not in the SELECT statement in a GROUP BY clause.

Retrieves whether this database supports using columns not included in the SELECT statement in a GROUP BY clause provided that all of the columns in the SELECT statement are included in the GROUP BY clause.

Retrieves whether this database supports specifying a LIKE escape clause.

Retrieves whether this database supports getting multiple ResultSet objects from a single call to the method execute.

Retrieves whether this database allows having multiple transactions open at once (on different connections).

Retrieves whether columns in this database may be defined as non-nullable.

Retrieves whether this database supports the ODBC Minimum SQL grammar.

Retrieves whether this database supports the ODBC Core SQL grammar.

Retrieves whether this database supports the ODBC Extended SQL grammar.

Retrieves whether this database supports the ANSI92 entry level SQL grammar.

Retrieves whether this database supports the ANSI92 intermediate SQL grammar supported.

Retrieves whether this database supports the ANSI92 full SQL grammar supported.

Retrieves whether this database supports the SQL Integrity Enhancement Facility.

Retrieves whether this database supports some form of outer join.

Retrieves whether this database supports full nested outer joins.

Retrieves whether this database provides limited support for outer joins. (This will be true if the method supportsFullOuterJoins returns true).

Retrieves the database vendor's preferred term for "schema".

Retrieves the database vendor's preferred term for "procedure".

Retrieves the database vendor's preferred term for "catalog".

Retrieves whether a catalog appears at the start of a fully qualified table name. If not, the catalog appears at the end.

Retrieves the String that this database uses as the separator between a catalog and table name.

Retrieves whether a schema name can be used in a data manipulation statement.

Retrieves whether a schema name can be used in a procedure call statement.

Retrieves whether a schema name can be used in a table definition statement.

Retrieves whether a schema name can be used in an index definition statement.

Retrieves whether a schema name can be used in a privilege definition statement.

Retrieves whether a catalog name can be used in a data manipulation statement.

Retrieves whether a catalog name can be used in a procedure call statement.

Retrieves whether a catalog name can be used in a table definition statement.

Retrieves whether a catalog name can be used in an index definition statement.

Retrieves whether a catalog name can be used in a privilege definition statement.

Retrieves whether this database supports positioned DELETE statements.

Retrieves whether this database supports positioned UPDATE statements.

Retrieves whether this database supports SELECT FOR UPDATE statements.

Retrieves whether this database supports stored procedure calls that use the stored procedure escape syntax.

Retrieves whether this database supports subqueries in comparison expressions.

Retrieves whether this database supports subqueries in EXISTS expressions.

Retrieves whether this database supports subqueries in IN expressions.

Retrieves whether this database supports subqueries in quantified expressions.

Retrieves whether this database supports correlated subqueries.

Retrieves whether this database supports SQL UNION.

Retrieves whether this database supports SQL UNION ALL .

Retrieves whether this database supports keeping cursors open across commits.

Retrieves whether this database supports keeping cursors open across rollbacks.

Retrieves whether this database supports keeping statements open across commits.

Retrieves whether this database supports keeping statements open across rollbacks.

Retrieves the maximum number of hex characters this database allows in an inline binary literal.

Retrieves the maximum number of characters this database allows for a character literal.

Retrieves the maximum number of characters this database allows for a column name.

Retrieves the maximum number of columns this database allows in a GROUP BY clause.

Retrieves the maximum number of columns this database allows in an index.

Retrieves the maximum number of columns this database allows in an ORDER BY clause.

Retrieves the maximum number of columns this database allows in a SELECT list.

Retrieves the maximum number of columns this database allows in a table.

Retrieves the maximum number of concurrent connections to this database that are possible.

Retrieves the maximum number of characters that this database allows in a cursor name.

Retrieves the maximum number of bytes this database allows for an index, including all of the parts of the index.

Retrieves the maximum number of characters that this database allows in a schema name.

Retrieves the maximum number of characters that this database allows in a procedure name.

Retrieves the maximum number of characters that this database allows in a catalog name.

Retrieves the maximum number of bytes this database allows in a single row.

Retrieves whether the return value for the method getMaxRowSize includes the SQL data types LONGVARCHAR and LONGVARBINARY.

Retrieves the maximum number of characters this database allows in an SQL statement.

Retrieves the maximum number of active statements to this database that can be open at the same time.

Retrieves the maximum number of characters this database allows in a table name.

Retrieves the maximum number of tables this database allows in a SELECT statement.

Retrieves the maximum number of characters this database allows in a user name.

Retrieves this database's default transaction isolation level. The possible values are defined in java.sql.Connection.

Retrieves whether this database supports transactions. If not, invoking the method commit is a noop, and the isolation level is TRANSACTION_NONE.

Retrieves whether this database supports the given transaction isolation level.

Retrieves whether this database supports both data definition and data manipulation statements within a transaction.

Retrieves whether this database supports only data manipulation statements within a transaction.

Retrieves whether a data definition statement within a transaction forces the transaction to commit.

Retrieves whether this database ignores a data definition statement within a transaction.

Retrieves a description of the stored procedures available in the given catalog.

Only procedure descriptions matching the schema and procedure name criteria are returned. They are ordered by PROCEDURE_CAT, PROCEDURE_SCHEM, PROCEDURE_NAME and SPECIFIC_ NAME .

Each procedure description has the following columns:

1. PROCEDURE_CAT String => procedure catalog (may be null)
2. PROCEDURE_SCHEM String => procedure schema (may be null)
3. PROCEDURE_NAME String => procedure name
4. reserved for future use
5. reserved for future use
6. reserved for future use
7. REMARKS String => explanatory comment on the procedure
8. PROCEDURE_TYPE short => kind of procedure:
   • procedureResultUnknown - Cannot determine if a return value will be returned
   • procedureNoResult - Does not return a return value
   • procedureReturnsResult - Returns a return value
9. SPECIFIC_NAME String => The name which uniquely identifies this procedure within its schema.

A user may not have permissions to execute any of the procedures that are returned by getProcedures

Retrieves a description of the given catalog's stored procedure parameter and result columns.

Only descriptions matching the schema, procedure and parameter name criteria are returned. They are ordered by PROCEDURE_CAT, PROCEDURE_SCHEM, PROCEDURE_NAME and SPECIFIC_NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.

Each row in the ResultSet is a parameter description or column description with the following fields:

1. PROCEDURE_CAT String => procedure catalog (may be null)
2. PROCEDURE_SCHEM String => procedure schema (may be null)
3. PROCEDURE_NAME String => procedure name
4. COLUMN_NAME String => column/parameter name
5. COLUMN_TYPE Short => kind of column/parameter:
   • procedureColumnUnknown - nobody knows
   • procedureColumnIn - IN parameter
   • procedureColumnInOut - INOUT parameter
   • procedureColumnOut - OUT parameter
   • procedureColumnReturn - procedure return value
   • procedureColumnResult - result column in ResultSet
6. DATA_TYPE int => SQL type from java.sql.Types
7. TYPE_NAME String => SQL type name, for a UDT type the type name is fully qualified
8. PRECISION int => precision
9. LENGTH int => length in bytes of data
10. SCALE short => scale - null is returned for data types where SCALE is not applicable.
11. RADIX short => radix
12. NULLABLE short => can it contain NULL.
    • procedureNoNulls - does not allow NULL values
    • procedureNullable - allows NULL values
    • procedureNullableUnknown - nullability unknown
13. REMARKS String => comment describing parameter/column
14. COLUMN_DEF String => default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may be null)
    • The string NULL (not enclosed in quotes) - if NULL was specified as the default value
    • TRUNCATE (not enclosed in quotes) - if the specified default value cannot be represented without truncation
    • NULL - if a default value was not specified
15. SQL_DATA_TYPE int => reserved for future use
16. SQL_DATETIME_SUB int => reserved for future use
17. CHAR_OCTET_LENGTH int => the maximum length of binary and character based columns. For any other datatype the returned value is a NULL
18. ORDINAL_POSITION int => the ordinal position, starting from 1, for the input and output parameters for a procedure. A value of 0 is returned if this row describes the procedure's return value. For result set columns, it is the ordinal position of the column in the result set starting from 1. If there are multiple result sets, the column ordinal positions are implementation defined.
19. IS_NULLABLE String => ISO rules are used to determine the nullability for a column.
    • YES --- if the column can include NULLs
    • NO --- if the column cannot include NULLs
    • empty string --- if the nullability for the column is unknown
20. SPECIFIC_NAME String => the name which uniquely identifies this procedure within its schema.

Note: Some databases may not return the column descriptions for a procedure.

The PRECISION column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.

Retrieves a description of the tables available in the given catalog. Only table descriptions matching the catalog, schema, table name and type criteria are returned. They are ordered by TABLE_TYPE, TABLE_CAT, TABLE_SCHEM and TABLE_NAME.

Each table description has the following columns:

1. TABLE_CAT String => table catalog (may be null)
2. TABLE_SCHEM String => table schema (may be null)
3. TABLE_NAME String => table name
4. TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
5. REMARKS String => explanatory comment on the table (may be null)
6. TYPE_CAT String => the types catalog (may be null)
7. TYPE_SCHEM String => the types schema (may be null)
8. TYPE_NAME String => type name (may be null)
9. SELF_REFERENCING_COL_NAME String => name of the designated "identifier" column of a typed table (may be null)
10. REF_GENERATION String => specifies how values in SELF_REFERENCING_COL_NAME are created. Values are "SYSTEM", "USER", "DERIVED". (may be null)

Note: Some databases may not return information for all tables.

Retrieves the schema names available in this database. The results are ordered by TABLE_CATALOG and TABLE_SCHEM.

The schema columns are:

1. TABLE_SCHEM String => schema name
2. TABLE_CATALOG String => catalog name (may be null)

Retrieves the catalog names available in this database. The results are ordered by catalog name.

The catalog column is:

1. TABLE_CAT String => catalog name

Retrieves the table types available in this database. The results are ordered by table type.

The table type is:

1. TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".

Retrieves a description of table columns available in the specified catalog.

Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered by TABLE_CAT,TABLE_SCHEM, TABLE_NAME, and ORDINAL_POSITION.

Each column description has the following columns:

1. TABLE_CAT String => table catalog (may be null)
2. TABLE_SCHEM String => table schema (may be null)
3. TABLE_NAME String => table name
4. COLUMN_NAME String => column name
5. DATA_TYPE int => SQL type from java.sql.Types
6. TYPE_NAME String => Data source dependent type name, for a UDT the type name is fully qualified
7. COLUMN_SIZE int => column size.
8. BUFFER_LENGTH is not used.
9. DECIMAL_DIGITS int => the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable.
10. NUM_PREC_RADIX int => Radix (typically either 10 or 2)
11. NULLABLE int => is NULL allowed.
    • columnNoNulls - might not allow NULL values
    • columnNullable - definitely allows NULL values
    • columnNullableUnknown - nullability unknown
12. REMARKS String => comment describing column (may be null)
13. COLUMN_DEF String => default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may be null)
14. SQL_DATA_TYPE int => unused
15. SQL_DATETIME_SUB int => unused
16. CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
17. ORDINAL_POSITION int => index of column in table (starting at 1)
18. IS_NULLABLE String => ISO rules are used to determine the nullability for a column.
    • YES --- if the column can include NULLs
    • NO --- if the column cannot include NULLs
    • empty string --- if the nullability for the column is unknown
19. SCOPE_CATALOG String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
20. SCOPE_SCHEMA String => schema of table that is the scope of a reference attribute (null if the DATA_TYPE isn't REF)
21. SCOPE_TABLE String => table name that this the scope of a reference attribute (null if the DATA_TYPE isn't REF)
22. SOURCE_DATA_TYPE short => source type of a distinct type or user-generated Ref type, SQL type from java.sql.Types (null if DATA_TYPE isn't DISTINCT or user-generated REF)
23. IS_AUTOINCREMENT String => Indicates whether this column is auto incremented
    • YES --- if the column is auto incremented
    • NO --- if the column is not auto incremented
    • empty string --- if it cannot be determined whether the column is auto incremented
24. IS_GENERATEDCOLUMN String => Indicates whether this is a generated column
    • YES --- if this a generated column
    • NO --- if this not a generated column
    • empty string --- if it cannot be determined whether this is a generated column

The COLUMN_SIZE column specifies the column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.

Retrieves a description of the access rights for a table's columns.

Only privileges matching the column name criteria are returned. They are ordered by COLUMN_NAME and PRIVILEGE.

Each privilege description has the following columns:

1. TABLE_CAT String => table catalog (may be null)
2. TABLE_SCHEM String => table schema (may be null)
3. TABLE_NAME String => table name
4. COLUMN_NAME String => column name
5. GRANTOR String => grantor of access (may be null)
6. GRANTEE String => grantee of access
7. PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFERENCES, ...)
8. IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown

Retrieves a description of the access rights for each table available in a catalog. Note that a table privilege applies to one or more columns in the table. It would be wrong to assume that this privilege applies to all columns (this may be true for some systems but is not true for all.)

Only privileges matching the schema and table name criteria are returned. They are ordered by TABLE_CAT, TABLE_SCHEM, TABLE_NAME, and PRIVILEGE.

Each privilege description has the following columns:

1. TABLE_CAT String => table catalog (may be null)
2. TABLE_SCHEM String => table schema (may be null)
3. TABLE_NAME String => table name
4. GRANTOR String => grantor of access (may be null)
5. GRANTEE String => grantee of access
6. PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFERENCES, ...)
7. IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown

Retrieves a description of a table's optimal set of columns that uniquely identifies a row. They are ordered by SCOPE.

Each column description has the following columns:

1. SCOPE short => actual scope of result
   • bestRowTemporary - very temporary, while using row
   • bestRowTransaction - valid for remainder of current transaction
   • bestRowSession - valid for remainder of current session
2. COLUMN_NAME String => column name
3. DATA_TYPE int => SQL data type from java.sql.Types
4. TYPE_NAME String => Data source dependent type name, for a UDT the type name is fully qualified
5. COLUMN_SIZE int => precision
6. BUFFER_LENGTH int => not used
7. DECIMAL_DIGITS short => scale - Null is returned for data types where DECIMAL_DIGITS is not applicable.
8. PSEUDO_COLUMN short => is this a pseudo column like an Oracle ROWID
   • bestRowUnknown - may or may not be pseudo column
   • bestRowNotPseudo - is NOT a pseudo column
   • bestRowPseudo - is a pseudo column

The COLUMN_SIZE column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.

Retrieves a description of a table's columns that are automatically updated when any value in a row is updated. They are unordered.

Each column description has the following columns:

1. SCOPE short => is not used
2. COLUMN_NAME String => column name
3. DATA_TYPE int => SQL data type from java.sql.Types
4. TYPE_NAME String => Data source-dependent type name
5. COLUMN_SIZE int => precision
6. BUFFER_LENGTH int => length of column value in bytes
7. DECIMAL_DIGITS short => scale - Null is returned for data types where DECIMAL_DIGITS is not applicable.
8. PSEUDO_COLUMN short => whether this is pseudo column like an Oracle ROWID
   • versionColumnUnknown - may or may not be pseudo column
   • versionColumnNotPseudo - is NOT a pseudo column
   • versionColumnPseudo - is a pseudo column

The COLUMN_SIZE column represents the specified column size for the given column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.

Retrieves a description of the given table's primary key columns. They are ordered by COLUMN_NAME.

Each primary key column description has the following columns:

1. TABLE_CAT String => table catalog (may be null)
2. TABLE_SCHEM String => table schema (may be null)
3. TABLE_NAME String => table name
4. COLUMN_NAME String => column name
5. KEY_SEQ short => sequence number within primary key( a value of 1 represents the first column of the primary key, a value of 2 would represent the second column within the primary key).
6. PK_NAME String => primary key name (may be null)

Retrieves a description of the primary key columns that are referenced by the given table's foreign key columns (the primary keys imported by a table). They are ordered by PKTABLE_CAT, PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.

Each primary key column description has the following columns:

1. PKTABLE_CAT String => primary key table catalog being imported (may be null)
2. PKTABLE_SCHEM String => primary key table schema being imported (may be null)
3. PKTABLE_NAME String => primary key table name being imported
4. PKCOLUMN_NAME String => primary key column name being imported
5. FKTABLE_CAT String => foreign key table catalog (may be null)
6. FKTABLE_SCHEM String => foreign key table schema (may be null)
7. FKTABLE_NAME String => foreign key table name
8. FKCOLUMN_NAME String => foreign key column name
9. KEY_SEQ short => sequence number within a foreign key( a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key).
10. UPDATE_RULE short => What happens to a foreign key when the primary key is updated:
    • importedNoAction - do not allow update of primary key if it has been imported
    • importedKeyCascade - change imported key to agree with primary key update
    • importedKeySetNull - change imported key to NULL if its primary key has been updated
    • importedKeySetDefault - change imported key to default values if its primary key has been updated
    • importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
    • importedKeyNoAction - do not allow delete of primary key if it has been imported
    • importedKeyCascade - delete rows that import a deleted key
    • importedKeySetNull - change imported key to NULL if its primary key has been deleted
    • importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    • importedKeySetDefault - change imported key to default if its primary key has been deleted
12. FK_NAME String => foreign key name (may be null)
13. PK_NAME String => primary key name (may be null)
14. DEFERRABILITY short => can the evaluation of foreign key constraints be deferred until commit
    • importedKeyInitiallyDeferred - see SQL92 for definition
    • importedKeyInitiallyImmediate - see SQL92 for definition
    • importedKeyNotDeferrable - see SQL92 for definition

Retrieves a description of the foreign key columns that reference the given table's primary key columns (the foreign keys exported by a table). They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.

Each foreign key column description has the following columns:

1. PKTABLE_CAT String => primary key table catalog (may be null)
2. PKTABLE_SCHEM String => primary key table schema (may be null)
3. PKTABLE_NAME String => primary key table name
4. PKCOLUMN_NAME String => primary key column name
5. FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
6. FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
7. FKTABLE_NAME String => foreign key table name being exported
8. FKCOLUMN_NAME String => foreign key column name being exported
9. KEY_SEQ short => sequence number within foreign key( a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key).
10. UPDATE_RULE short => What happens to foreign key when primary is updated:
    • importedNoAction - do not allow update of primary key if it has been imported
    • importedKeyCascade - change imported key to agree with primary key update
    • importedKeySetNull - change imported key to NULL if its primary key has been updated
    • importedKeySetDefault - change imported key to default values if its primary key has been updated
    • importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
    • importedKeyNoAction - do not allow delete of primary key if it has been imported
    • importedKeyCascade - delete rows that import a deleted key
    • importedKeySetNull - change imported key to NULL if its primary key has been deleted
    • importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    • importedKeySetDefault - change imported key to default if its primary key has been deleted
12. FK_NAME String => foreign key name (may be null)
13. PK_NAME String => primary key name (may be null)
14. DEFERRABILITY short => can the evaluation of foreign key constraints be deferred until commit
    • importedKeyInitiallyDeferred - see SQL92 for definition
    • importedKeyInitiallyImmediate - see SQL92 for definition
    • importedKeyNotDeferrable - see SQL92 for definition

Retrieves a description of the foreign key columns in the given foreign key table that reference the primary key or the columns representing a unique constraint of the parent table (could be the same or a different table). The number of columns returned from the parent table must match the number of columns that make up the foreign key. They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.

Each foreign key column description has the following columns:

1. PKTABLE_CAT String => parent key table catalog (may be null)
2. PKTABLE_SCHEM String => parent key table schema (may be null)
3. PKTABLE_NAME String => parent key table name
4. PKCOLUMN_NAME String => parent key column name
5. FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
6. FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
7. FKTABLE_NAME String => foreign key table name being exported
8. FKCOLUMN_NAME String => foreign key column name being exported
9. KEY_SEQ short => sequence number within foreign key( a value of 1 represents the first column of the foreign key, a value of 2 would represent the second column within the foreign key).
10. UPDATE_RULE short => What happens to foreign key when parent key is updated:
    • importedNoAction - do not allow update of parent key if it has been imported
    • importedKeyCascade - change imported key to agree with parent key update
    • importedKeySetNull - change imported key to NULL if its parent key has been updated
    • importedKeySetDefault - change imported key to default values if its parent key has been updated
    • importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
11. DELETE_RULE short => What happens to the foreign key when parent key is deleted.
    • importedKeyNoAction - do not allow delete of parent key if it has been imported
    • importedKeyCascade - delete rows that import a deleted key
    • importedKeySetNull - change imported key to NULL if its primary key has been deleted
    • importedKeyRestrict - same as importedKeyNoAction (for ODBC 2.x compatibility)
    • importedKeySetDefault - change imported key to default if its parent key has been deleted
12. FK_NAME String => foreign key name (may be null)
13. PK_NAME String => parent key name (may be null)
14. DEFERRABILITY short => can the evaluation of foreign key constraints be deferred until commit
    • importedKeyInitiallyDeferred - see SQL92 for definition
    • importedKeyInitiallyImmediate - see SQL92 for definition
    • importedKeyNotDeferrable - see SQL92 for definition

Retrieves a description of all the data types supported by this database. They are ordered by DATA_TYPE and then by how closely the data type maps to the corresponding JDBC SQL type.

If the database supports SQL distinct types, then getTypeInfo() will return a single row with a TYPE_NAME of DISTINCT and a DATA_TYPE of Types.DISTINCT. If the database supports SQL structured types, then getTypeInfo() will return a single row with a TYPE_NAME of STRUCT and a DATA_TYPE of Types.STRUCT.

If SQL distinct or structured types are supported, then information on the individual types may be obtained from the getUDTs() method.

Each type description has the following columns:

1. TYPE_NAME String => Type name
2. DATA_TYPE int => SQL data type from java.sql.Types
3. PRECISION int => maximum precision
4. LITERAL_PREFIX String => prefix used to quote a literal (may be null)
5. LITERAL_SUFFIX String => suffix used to quote a literal (may be null)
6. CREATE_PARAMS String => parameters used in creating the type (may be null)
7. NULLABLE short => can you use NULL for this type.
   • typeNoNulls - does not allow NULL values
   • typeNullable - allows NULL values
   • typeNullableUnknown - nullability unknown
8. CASE_SENSITIVE boolean=> is it case sensitive.
9. SEARCHABLE short => can you use "WHERE" based on this type:
   • typePredNone - No support
   • typePredChar - Only supported with WHERE .. LIKE
   • typePredBasic - Supported except for WHERE .. LIKE
   • typeSearchable - Supported for all WHERE ..
10. UNSIGNED_ATTRIBUTE boolean => is it unsigned.
11. FIXED_PREC_SCALE boolean => can it be a money value.
12. AUTO_INCREMENT boolean => can it be used for an auto-increment value.
13. LOCAL_TYPE_NAME String => localized version of type name (may be null)
14. MINIMUM_SCALE short => minimum scale supported
15. MAXIMUM_SCALE short => maximum scale supported
16. SQL_DATA_TYPE int => unused
17. SQL_DATETIME_SUB int => unused
18. NUM_PREC_RADIX int => usually 2 or 10

The PRECISION column represents the maximum column size that the server supports for the given datatype. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.

Retrieves a description of the given table's indices and statistics. They are ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION.

Each index column description has the following columns:

1. TABLE_CAT String => table catalog (may be null)
2. TABLE_SCHEM String => table schema (may be null)
3. TABLE_NAME String => table name
4. NON_UNIQUE boolean => Can index values be non-unique. false when TYPE is tableIndexStatistic
5. INDEX_QUALIFIER String => index catalog (may be null); null when TYPE is tableIndexStatistic
6. INDEX_NAME String => index name; null when TYPE is tableIndexStatistic
7. TYPE short => index type:
   • tableIndexStatistic - this identifies table statistics that are returned in conjunction with a table's index descriptions
   • tableIndexClustered - this is a clustered index
   • tableIndexHashed - this is a hashed index
   • tableIndexOther - this is some other style of index
8. ORDINAL_POSITION short => column sequence number within index; zero when TYPE is tableIndexStatistic
9. COLUMN_NAME String => column name; null when TYPE is tableIndexStatistic
10. ASC_OR_DESC String => column sort sequence, "A" => ascending, "D" => descending, may be null if sort sequence is not supported; null when TYPE is tableIndexStatistic
11. CARDINALITY long => When TYPE is tableIndexStatistic, then this is the number of rows in the table; otherwise, it is the number of unique values in the index.
12. PAGES long => When TYPE is tableIndexStatistic then this is the number of pages used for the table, otherwise it is the number of pages used for the current index.
13. FILTER_CONDITION String => Filter condition, if any. (may be null)

Retrieves whether this database supports the given result set type.

Retrieves whether this database supports the given concurrency type in combination with the given result set type.

Retrieves whether for the given type of ResultSet object, the result set's own updates are visible.

Retrieves whether a result set's own deletes are visible.

Retrieves whether a result set's own inserts are visible.

Retrieves whether updates made by others are visible.

Retrieves whether deletes made by others are visible.

Retrieves whether inserts made by others are visible.

Retrieves whether or not a visible row update can be detected by calling the method ResultSet.rowUpdated.

Retrieves whether or not a visible row delete can be detected by calling the method ResultSet.rowDeleted. If the method deletesAreDetected returns false, it means that deleted rows are removed from the result set.

Retrieves whether or not a visible row insert can be detected by calling the method ResultSet.rowInserted.

Retrieves whether this database supports batch updates.

Retrieves a description of the user-defined types (UDTs) defined in a particular schema. Schema-specific UDTs may have type JAVA_OBJECT, STRUCT, or DISTINCT.

Only types matching the catalog, schema, type name and type criteria are returned. They are ordered by DATA_TYPE, TYPE_CAT, TYPE_SCHEM and TYPE_NAME. The type name parameter may be a fully-qualified name. In this case, the catalog and schemaPattern parameters are ignored.

Each type description has the following columns:

1. TYPE_CAT String => the type's catalog (may be null)
2. TYPE_SCHEM String => type's schema (may be null)
3. TYPE_NAME String => type name
4. CLASS_NAME String => Java class name
5. DATA_TYPE int => type value defined in java.sql.Types. One of JAVA_OBJECT, STRUCT, or DISTINCT
6. REMARKS String => explanatory comment on the type
7. BASE_TYPE short => type code of the source type of a DISTINCT type or the type that implements the user-generated reference type of the SELF_REFERENCING_COLUMN of a structured type as defined in java.sql.Types (null if DATA_TYPE is not DISTINCT or not STRUCT with REFERENCE_GENERATION = USER_DEFINED)

Note: If the driver does not support UDTs, an empty result set is returned.

Retrieves the connection that produced this metadata object.

Retrieves whether this database supports savepoints.

Retrieves whether this database supports named parameters to callable statements.

Retrieves whether it is possible to have multiple ResultSet objects returned from a CallableStatement object simultaneously.

Retrieves whether auto-generated keys can be retrieved after a statement has been executed

Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database. Only the immediate super type/ sub type relationship is modeled.

Only supertype information for UDTs matching the catalog, schema, and type name is returned. The type name parameter may be a fully-qualified name. When the UDT name supplied is a fully-qualified name, the catalog and schemaPattern parameters are ignored.

If a UDT does not have a direct super type, it is not listed here. A row of the ResultSet object returned by this method describes the designated UDT and a direct supertype. A row has the following columns:

1. TYPE_CAT String => the UDT's catalog (may be null)
2. TYPE_SCHEM String => UDT's schema (may be null)
3. TYPE_NAME String => type name of the UDT
4. SUPERTYPE_CAT String => the direct super type's catalog (may be null)
5. SUPERTYPE_SCHEM String => the direct super type's schema (may be null)
6. SUPERTYPE_NAME String => the direct super type's name

Note: If the driver does not support type hierarchies, an empty result set is returned.

Retrieves a description of the table hierarchies defined in a particular schema in this database.

Only supertable information for tables matching the catalog, schema and table name are returned. The table name parameter may be a fully- qualified name, in which case, the catalog and schemaPattern parameters are ignored. If a table does not have a super table, it is not listed here. Supertables have to be defined in the same catalog and schema as the sub tables. Therefore, the type description does not need to include this information for the supertable.

Each type description has the following columns:

1. TABLE_CAT String => the type's catalog (may be null)
2. TABLE_SCHEM String => type's schema (may be null)
3. TABLE_NAME String => type name
4. SUPERTABLE_NAME String => the direct super type's name

Note: If the driver does not support type hierarchies, an empty result set is returned.

Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog.

Descriptions are returned only for attributes of UDTs matching the catalog, schema, type, and attribute name criteria. They are ordered by TYPE_CAT, TYPE_SCHEM, TYPE_NAME and ORDINAL_POSITION. This description does not contain inherited attributes.

The ResultSet object that is returned has the following columns:

1. TYPE_CAT String => type catalog (may be null)
2. TYPE_SCHEM String => type schema (may be null)
3. TYPE_NAME String => type name
4. ATTR_NAME String => attribute name
5. DATA_TYPE int => attribute type SQL type from java.sql.Types
6. ATTR_TYPE_NAME String => Data source dependent type name. For a UDT, the type name is fully qualified. For a REF, the type name is fully qualified and represents the target type of the reference type.
7. ATTR_SIZE int => column size. For char or date types this is the maximum number of characters; for numeric or decimal types this is precision.
8. DECIMAL_DIGITS int => the number of fractional digits. Null is returned for data types where DECIMAL_DIGITS is not applicable.
9. NUM_PREC_RADIX int => Radix (typically either 10 or 2)
10. NULLABLE int => whether NULL is allowed
    • attributeNoNulls - might not allow NULL values
    • attributeNullable - definitely allows NULL values
    • attributeNullableUnknown - nullability unknown
11. REMARKS String => comment describing column (may be null)
12. ATTR_DEF String => default value (may be null)
13. SQL_DATA_TYPE int => unused
14. SQL_DATETIME_SUB int => unused
15. CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
16. ORDINAL_POSITION int => index of the attribute in the UDT (starting at 1)
17. IS_NULLABLE String => ISO rules are used to determine the nullability for a attribute.
    • YES --- if the attribute can include NULLs
    • NO --- if the attribute cannot include NULLs
    • empty string --- if the nullability for the attribute is unknown
18. SCOPE_CATALOG String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
19. SCOPE_SCHEMA String => schema of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
20. SCOPE_TABLE String => table name that is the scope of a reference attribute (null if the DATA_TYPE isn't REF)
21. SOURCE_DATA_TYPE short => source type of a distinct type or user-generated Ref type, SQL type from java.sql.Types (null if DATA_TYPE isn't DISTINCT or user-generated REF)

Retrieves whether this database supports the given result set holdability.