|
Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://oit.cmc.msu.ru/php/function.odbc-foreignkeys.html
Дата изменения: Sun Feb 3 22:49:47 2002 Дата индексирования: Mon Oct 1 22:04:00 2012 Кодировка: |
(PHP 4 >= 4.0.0)
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 tableodbc_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.