[OXID eShop] check if a table exists or not, e.g. for module activation / deactivation events

check if a table exists

$oDb = oxDb::getDb();
$sCheck = "SHOW TABLES LIKE 'tablename'";

// returns string if table found or false if not found
if (!$oDb->getOne($sCheck))
{
	// table does not exists
	// do something
}