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(PECL CUBRID >= 8.3.0)
cubrid_is_instance — Vérifie si une instance existe
La fonction cubrid_is_instance() est utilisée pour
vérifier si l'instance pointée par l'oid
fournie
existe ou non.
conn_identifier
Identifiant de connexion.
oid
OID de l'instance dont vous voulez vérifier l'existence.
1, si l'instance existe.
0, si l'instance n'existe pas.
-1, si une erreur survient.
Exemple #1 Exemple avec cubrid_is_instance()
<?php
$conn = cubrid_connect("localhost", 33000, "demodb");
$sql = <<<EOD
SELECT host_year, medal, game_date
FROM game
WHERE athlete_code IN
(SELECT code FROM athlete WHERE name='Thorpe Ian');
EOD;
$req = cubrid_execute($conn, $sql, CUBRID_INCLUDE_OID);
$oid = cubrid_current_oid($req);
$res = cubrid_is_instance ($conn, $oid);
if ($res == 1) {
echo "Instance pointed by $oid exists.\n";
} else if ($res == 0){
echo "Instance pointed by $oid doesn't exist.\n";
} else {
echo "error\n";
}
cubrid_disconnect($conn);
?>
L'exemple ci-dessus va afficher :
Instance pointed by @0|0|0 doesn't exist.