FROM information_schema.REFERENTIAL_CONSTRAINTS
WHERE CONSTRAINT_NAME IN (" . implode(',', $constraintArray) . ")
AND CONSTRAINT_SCHEMA = %1";
$params = array(1 => array($dbname['database'], 'String'));
$onDelete = CRM_Core_DAO::executeQuery($sql, $params, TRUE, FALSE);
while ($onDelete->fetch()) {
FROM information_schema.REFERENTIAL_CONSTRAINTS
WHERE CONSTRAINT_NAME IN (" . implode(',', $constraintArray) . ")
AND CONSTRAINT_SCHEMA = %1";
$params = array(1 => array($dbname['database'], 'String'));
$onDelete = CRM_Core_DAO::executeQuery($sql, $params, TRUE, FALSE);
while ($onDelete->fetch()) {