yii\db\mssql\QueryBuilder::addCommentOnTable PHP Method

    public function addCommentOnTable($table, $comment)
    {
        return "sp_updateextendedproperty @name = N'MS_Description', @value = {$this->db->quoteValue($comment)}, @level1type = N'Table',  @level1name = {$this->db->quoteTableName($table)}";
    }