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java.sql interface DatabaseMetaData
ResultSet getPrimaryKeys (String catalog,String schema,String table)throws SQLException
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:
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)
Parameters:
catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search
schema - a schema name; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search
table - a table name; must match the table name as it is stored in the database
Returns:
ResultSet - each row is a primary key column description
Throws:
SQLException - if a database access error occurs
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