odbc_foreignkeys

(PHP 4, PHP 5, PHP 7)

Retrieves a list of foreign keys

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

Retrieves 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

Parameters:

connection_id

The ODBC connection identifier, see odbc_connect() for details.

pk_qualifier

The primary key qualifier.

pk_owner

The primary key owner.

pk_table

The primary key table.

fk_qualifier

The foreign key qualifier.

fk_owner

The foreign key owner.

fk_table

The foreign key table.

Returns:

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.

Links:

http://php.net/manual/en/function.odbc-foreignkeys.php

doc_php

2016-02-24 16:15:45

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