====== metaPrimaryKeys ======
~~NOTOC~~
<WRAP right box>
== See Also ==
[[v5:dictionary:metaindexes|metaIndexes()]]

== Syntax ==
    mixed metaPrimaryKeys(
        string $tableName,
        optional string $owner=false,
        )
</WRAP>
===== Description =====
The function ''metaPrimaryKeys()'' returns the column names in the primary key associated with a specific table as a numeric array. If there are no primary keys, then the function returns false.

The values of the keys are returned in the native casing of the database. If writing portable applications you should not depend on the case of the value.
===== Optional Parameters =====
==== $owner ====
If specified, only returns primary keys associated with a table owned by that name.
===== Usage =====
<code php>
/*
 * Connection to DB2 sample database assumed
 */
$mpk = $db->metaPrimaryKeys('ACT');
print_r($mpk);
/*
 * Prints 
Array
(
    [0] => ACTNO
)

 */
</code>