IBM DB2 Funktionen
PHP-Handbuch

db2_primary_keys

Returns a result set listing primary keys for a table

Beschreibung

resource db2_primary_keys ( resource $connection , string $qualifier , string $schema , string $table-name )

Returns a result set listing the primary keys for a table.

Parameter-Liste

connection

A valid connection to an IBM DB2, Cloudscape, or Apache Derby database.

qualifier

A qualifier for DB2 databases running on OS/390 or z/OS servers. For other databases, pass NULL or an empty string.

schema

The schema which contains the tables. If schema is NULL, db2_primary_keys matches the schema for the current connection.

table-name

The name of the table.

Rückgabewerte

Returns a statement resource with a result set containing rows describing the primary keys for the specified table. The result set is composed of the following columns:

Column name Description
TABLE_CAT Name of the catalog for the table containing the primary key. The value is NULL if this table does not have catalogs.
TABLE_SCHEM Name of the schema for the table containing the primary key.
TABLE_NAME Name of the table containing the primary key.
COLUMN_NAME Name of the column containing the primary key.
KEY_SEQ 1-indexed position of the column in the key.
PK_NAME The name of the primary key.

Siehe auch

  • db2_column_privileges
  • db2_columns
  • db2_foreign_keys
  • db2_procedure_columns
  • db2_procedures
  • db2_special_columns
  • db2_statistics
  • db2_table_privileges
  • db2_tables