DatabaseMetaData.getPrimaryKeys
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public abstract ResultSet getPrimaryKeys( String catalog,
String schema,
String table ) throws SQLException
Parameters
- catalog
- a catalog name; "" retrieves those without a
catalog; null means drop catalog name from the selection criteria
- schema
- a schema name pattern; "" retrieves those
without a schema
- table
- a table name
Returns
ResultSet - each row is a primary key column description
Description
Get a description of a table's primary key columns. They
are ordered by COLUMN_NAME.
Each primary key column description has the following columns:
- TABLE_CAT String => table catalog (may be null)
- TABLE_SCHEM String => table schema (may be null)
- TABLE_NAME String => table name
- COLUMN_NAME String => column name
- KEY_SEQ short => sequence number within primary key
- PK_NAME String => primary key name (may be null)
Exceptions
SQLException
if a database-access error occurs.