номер строки над текстом столбца сортировка

Question

У меня проблемы с динамической сортировкой с использованием ROW Number в SQL Server. У меня он работает, но он бросает ошибки на не числовые поля. Что мне нужно изменить, чтобы получить сортировки с Alpha Working ???

ID Description 
5 Test  
6 Desert 
3 A evil 

Ive получил SqL Prodcedure

CREATE PROCEDURE [CRUDS].[MyTable_Search] 
    -- Add the parameters for the stored procedure here 
    -- Full Parameter List 
    @ID int = NULL,  
    @Description nvarchar(256) = NULL, 
    @StartIndex int = 0, 
    @Count int = null, 
    @Order varchar(128) = 'ID asc' 
AS 
BEGIN 
    -- SET NOCOUNT ON added to prevent extra result sets from 
    -- interfering with SELECT statements. 
    SET NOCOUNT ON; 

    -- Insert statements for procedure here 
Select * from 
    (
     Select ROW_NUMBER() OVER 
      (Order By 
       case 
        when @Order = 'ID asc' then [TableName].ID 
        when @Order = 'Description asc' then [TableName].Description  
       end asc, 
       case 
        when @Order = 'ID desc' then [TableName].ID 
        when @Order = 'Description desc' then [TableName].Description 
       end desc 
      ) as row, 
      [TableName].* from [TableName] 
     where 
      (@ID IS NULL OR [TableName].ID = @ID) AND 
      (@Description IS NULL OR [TableName].Description = @Description) 
) as a 
where 
    row > @StartIndex 
    and (@Count is null or row <= @StartIndex + @Count) 
order by 
    case 
     when @Order = 'ID asc' then a.ID  
     when @Order = 'Description asc' then a.Description 
    end asc, 
    case 
     when @Order = 'ID desc' then a.ID 
     when @Order = 'Description desc' then a.Description 
    end desc 


END 

Answer 1

она отлично работает для меня:

declare @TableName table (id int,Description varchar(50)) 
insert @TableName values (1,'aaa') 
insert @TableName values (2,'bbb') 
insert @TableName values (3,'ccc') 
insert @TableName values (4,'ddd') 
insert @TableName values (5,'eee') 
insert @TableName values (6,'fff') 
insert @TableName values (7,'ggg') 
insert @TableName values (8,'hhh') 
DECLARE @Order   varchar(10) 
     ,@ID   int 
     ,@Description varchar(50) 
     ,@StartIndex int 
     ,@Count   int 

SELECT @Order='Description desc' 
     ,@StartIndex=2 
     ,@Count=3 

--query unchanged, except alias to "t" and table name to "@TableName" 
Select * from 
    (
     Select ROW_NUMBER() OVER 
      (Order By 
       case 
        when @Order = 'ID asc' then t.ID 
        when @Order = 'Description asc' then t.Description  
       end asc, 
       case 
        when @Order = 'ID desc' then t.ID 
        when @Order = 'Description desc' then t.Description 
       end desc 
      ) as row, 
      t.* from @TableName t 
     where 
      (@ID IS NULL OR t.ID = @ID) AND 
      (@Description IS NULL OR t.Description = @Description) 
) as a 
where 
    row > @StartIndex 
    and (@Count is null or row <= @StartIndex + @Count) 
order by 
    case 
     when @Order = 'ID asc' then a.ID  
     when @Order = 'Description asc' then a.Description 
    end asc, 
    case 
     when @Order = 'ID desc' then a.ID 
     when @Order = 'Description desc' then a.Description 
    end desc 

выход:

row     id   Description 
-------------------- ----------- ------------- 
3     3   ccc 
4     4   ddd 
5     5   eee 

(3 row(s) affected) 

возможно размещать более подробную информацию о данных, которые вы с этим и с фактическим erro r сообщение.

EDIT на основе комментариев OP, попробуйте это:

declare @TableName table (id int,Description varchar(50)) 
insert @TableName values (1,'1') 
insert @TableName values (2,'bbb') 
insert @TableName values (3,'ccc') 
insert @TableName values (4,'ddd') 
insert @TableName values (5,'eee') 
insert @TableName values (6,'fff') 
insert @TableName values (7,'ggg') 
insert @TableName values (8,'hhh') 
DECLARE @Order   varchar(50) 
     ,@ID   int 
     ,@Description varchar(50) 
     ,@StartIndex int 
     ,@Count   int 

SELECT @Order='Description desc' 
     ,@StartIndex=2 
     ,@Count=3 

Select * from 
    (
     Select ROW_NUMBER() OVER 
      (Order By 
       case 
        when @Order = 'ID asc' then RIGHT(REPLICATE('0',10)+CONVERT(varchar(10),t.ID),10) 
        when @Order = 'Description asc' then t.Description  
       end asc, 
       case 
        when @Order = 'ID desc' then RIGHT(REPLICATE('0',10)+CONVERT(varchar(10),t.ID),10) 
        when @Order = 'Description desc' then t.Description 
       end desc 
      ) as row, 
      t.* from @TableName t 
     where 
      (@ID IS NULL OR t.ID = @ID) AND 
      (@Description IS NULL OR t.Description = @Description) 
) as a 
where 
    row > @StartIndex 
    and (@Count is null or row <= @StartIndex + @Count) 
order by 
    case 
     when @Order = 'ID asc' then RIGHT(REPLICATE('0',10)+CONVERT(varchar(10),a.ID),10) 
     when @Order = 'Description asc' then a.Description 
    end asc, 
    case 
     when @Order = 'ID desc' then RIGHT(REPLICATE('0',10)+CONVERT(varchar(10),a.ID),10) 
     when @Order = 'Description desc' then a.Description 
    end desc 

Я в основном преобразовать идентификаторы строк, используя эту логику:

RIGHT(REPLICATE('0',10)+CONVERT(varchar(10),ID),10)