public function delete(array $tables=[]) {
		$sql = $this->buildDeleteSQL($tables);
		$params = $this->getParameters();
		return $this->db->query($sql, $params)->affected();
	}
public function delete(array $tables=[]) {
		$sql = $this->buildDeleteSQL($tables);
		$params = $this->getParameters();
		return $this->db->query($sql, $params)->affected();
	}
public function delete ( array $ tables = [ ] ) { $ sql = $ this -> buildDeleteSQL ( $ tables ) ; $ params = $ this -> getParameters ( ) ; return $ this -> db -> query ( $ sql , $ params ) -> affected ( ) ; }
Delete rows.
@param  string[] $tables
@return integer
@api
Delete rows .