PostgreSQL database connection resource. When
connection is not present, the default connection
is used. The default connection is the last connection made by
pg_connect() or pg_pconnect().
<?php // OID of the large object to delete $doc_oid = 189762345; $database = pg_connect("dbname=jacarta"); pg_query($database, "begin"); pg_lo_unlink($database, $doc_oid); pg_query($database, "commit"); ?>