(PHP 4, PHP 5, PHP 7)
odbc_foreignkeys — Retrieves a list of foreign keys
$connection_id
, string $pk_qualifier
, string $pk_owner
, string $pk_table
, string $fk_qualifier
, string $fk_owner
, string $fk_table
) : resourceRetrieves 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
connection_idODBC 连接标识符，详见 odbc_connect()。
pk_qualifierThe primary key qualifier.
pk_ownerThe primary key owner.
pk_tableThe primary key table.
fk_qualifierThe foreign key qualifier.
fk_ownerThe foreign key owner.
fk_tableThe foreign key table.
Returns an ODBC result identifier 或者在失败时返回 FALSE.
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.