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PHP5中文手册
odbc_foreignkeys(PHP 4, PHP 5) 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:
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. |