DbConnection::getAffectedRowsCount

public function getAffectedRowsCount();

/*********************************************************
 * DDL
 *********************************************************/

abstract public function isTableExists($tableName);
abstract public function isIndexExists($tableName, array $arColumns);
abstract public function getIndexName($tableName, array $arColumns, $strict = false);
abstract public function getTableFields($tableName);


/*********************************************************
 * Transaction
 *********************************************************/

abstract public function startTransaction();
abstract public function commitTransaction();
abstract public function rollbackTransaction();


/*********************************************************
 * Tracker
 *********************************************************/

public function startTracker($reset = false)
{
	if ($this->sqlTracker == null)
		$this->sqlTracker = new BitrixMainDiagSqlTracker();
	if ($reset)
		$this->sqlTracker->reset();

	$this->trackSql = true;
}