(PHP 4, PHP 5, PHP 7)
odbc_primarykeys — Gets the primary keys for a table
$connection_id
, string $catalog
, string $schema
, string $table
) : resource|falseReturns a result identifier that can be used to fetch the column names that comprise the primary key for a table.
connection_idEine ODBC-Verbindungsressource, siehe odbc_connect() für Details.
catalogDer Katalog ('Kennzeichner' in ODBC 2 Terminologie).
schemaDas Schema ('Besitzer' in ODBC 2 Terminologie).
table
Returns an ODBC result identifierIm Fehlerfall wird FALSE zurückgegeben..
The result set has the following columns:
TABLE_CATTABLE_SCHEMTABLE_NAMECOLUMN_NAMEKEY_SEQPK_NAME
The result set is ordered by TABLE_CAT, TABLE_SCHEM,
TABLE_NAME and KEY_SEQ.
Beispiel #1 List primary Keys of a Column
<?php
$conn = odbc_connect($dsn, $user, $pass);
$primarykeys = odbc_primarykeys($conn, 'TutorialDB', 'dbo', 'TEST');
while (($row = odbc_fetch_array($primarykeys))) {
print_r($row);
break; // further rows omitted for brevity
}
?>
Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:
Array
(
[TABLE_CAT] => TutorialDB
[TABLE_SCHEM] => dbo
[TABLE_NAME] => TEST
[COLUMN_NAME] => id
[KEY_SEQ] => 1
[PK_NAME] => PK__TEST__3213E83FE141F843
)