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odbc_foreignkeys

(PHP 4 )

odbc_foreignkeys --  Returns a list of foreign keys in the specified table or a list of foreign keys in other tables that refer to the primary key in the specified table

Description

resource odbc_foreignkeys ( resource connection_id, string pk_qualifier, string pk_owner, string pk_table, string fk_qualifier, string fk_owner, string fk_table)

odbc_foreignkeys() retrieves information about foreign keys. Returns an ODBC result identifier or FALSE on failure.

The result set has the following columns:

  • PKTABLE_QUALIFIER

  • PKTABLE_OWNER

  • PKTABLE_NAME

  • PKCOLUMN_NAME

  • FKTABLE_QUALIFIER

  • FKTABLE_OWNER

  • FKTABLE_NAME

  • FKCOLUMN_NAME

  • KEY_SEQ

  • UPDATE_RULE

  • DELETE_RULE

  • FK_NAME

  • PK_NAME

If pk_table contains a table name, odbc_foreignkeys() returns a result set containing the primary key of the specified table and all of the foreign keys that refer to it.

If fk_table contains a table name, odbc_foreignkeys() returns a result set containing all of the foreign keys in the specified table and the primary keys (in other tables) to which they refer.

If both pk_table and fk_table contain table names, odbc_foreignkeys() returns the foreign keys in the table specified in fk_table that refer to the primary key of the table specified in pk_table. This should be one key at most.

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