Schema/DblibSchemaManager.php
public function listSequences($database = null)
    {
        $query      = "SELECT name FROM sysobjects WHERE xtype = 'U'";
        $tableNames = $this->_conn->fetchAll($query);

        return array_map([$this->_conn->formatter, 'fixSequenceName'], $tableNames);
    }
public function listSequences($database = null)
    {
        $query      = "SELECT name FROM sysobjects WHERE xtype = 'U'";
        $tableNames = $this->_conn->fetchAll($query);

        return array_map([$this->_conn->formatter, 'fixSequenceName'], $tableNames);
    }
lists all database sequences

@param string|null $database
@return array