SQL获取前X行数 [英] SQL geting Top X number of rows

问题描述

我只想获取查询的前 x 个数字.x 将通过参数发送到哪里我该怎么做?

i want to get only the top x number of the query. where the x will be send by parameter how can i do this?

我知道我可以把它当作字符串然后再执行，但我觉得它很麻烦.

I know i can take it as string and exec it later but i find it very cumbersome.

这是我的查询，@ArticleNo 是我想作为 x 的参数.

This the query i have and @ArticleNo is the parameter i want to take as x.

Create proc [dbo].[GW2_Report_SlowFastMovingArticle]    

@ArtKey bigint = null,
@ArtCatKey int= null,
@ArtGroupKey int= null,
@ArtTypeKey int= null,
@MaterialKey int= null,
@ColorKey int= null,
@VendorTypeKey int = null,
@VendorKey bigint = null,
@FromDate datetime = null,
@ToDate datetime = null,
@MovingType int = 0,
@PerformanceType int = 0,
@ArticleNo int = 10,
@OutletKey int = null
AS    
BEGIN  

SELECT 
dbo.Sal_POSDet.ArtKey,
dbo.ArtWithVendor.ArtCode, 
dbo.ArtWithVendor.ArtName,
Sum(isnull(dbo.Sal_POSDet.Qty,0))as Pair,
Sum(isnull(dbo.Sal_POSDet.Total,0)) as TurnOver
into #temp FROM 
dbo.Sal_POS INNER JOIN
dbo.Sal_POSDet ON 
dbo.Sal_POS.SalesKey = dbo.Sal_POSDet.SalesKey INNER JOIN
dbo.ArtWithVendor ON 
dbo.Sal_POSDet.ArtKey = dbo.ArtWithVendor.ArtKey

WHERE

Sal_POS.IsHold=0 and
Sal_POS.SalesDate between @FromDate  and @ToDate  and
        CASE WHEN  @ArtKey  is null THEN 1 WHEN ArtWithVendor.ArtKey =@ArtKey THEN 1 ELSE 0 END = 1   
        and CASE WHEN @ArtCatKey  is null THEN 1 WHEN ArtWithVendor.ArtCatKey =@ArtCatKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @ArtGroupKey is null THEN 1 WHEN ArtWithVendor.ArtGroupKey = @ArtGroupKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @ArtTypeKey  is null  THEN 1 WHEN ArtWithVendor.ArtTypeKey = @ArtTypeKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @MaterialKey is null THEN 1 WHEN ArtWithVendor.MaterialKey = @MaterialKey  THEN 1 ELSE 0 END = 1     
        and CASE WHEN @ColorKey  is null THEN 1 WHEN ArtWithVendor.ColorKey = @ColorKey  THEN 1 ELSE 0 END = 1     
        and CASE WHEN @VendorKey  is null  THEN 1 WHEN ArtWithVendor.VendorKey = @VendorKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @VendorTypeKey  is null  THEN 1 WHEN ArtWithVendor.VendorTypeKey = @VendorTypeKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @OutLetKey  is null  THEN 1 WHEN Sal_POS.OutLetKey = @OutLetKey THEN 1 ELSE 0 END = 1     

Group by 

dbo.Sal_POSDet.ArtKey,
dbo.ArtWithVendor.ArtCode, 
dbo.ArtWithVendor.ArtName



if(@PerformanceType=0 and @MovingType=0)
begin
select * from #temp 
order by Pair asc
end
if(@PerformanceType=0 and @MovingType=1)
begin
select  * from #temp 
order by Pair desc
end
if(@PerformanceType=1 and @MovingType=0)
begin
select * from #temp 
order by turnover asc
end
if(@PerformanceType=1 and @MovingType=1)
begin
select * from #temp 
order by turnover desc
end

END

推荐答案

使用:

SELECT TOP(@ArticleNo)

因此:

SELECT TOP(@ArticleNo)
    dbo.Sal_POSDet.ArtKey,
    dbo.ArtWithVendor.ArtCode, 
    dbo.ArtWithVendor.ArtName,
    Sum(isnull(dbo.Sal_POSDet.Qty,0))as Pair,
    Sum(isnull(dbo.Sal_POSDet.Total,0)) as TurnOver
    into #temp FROM 
    dbo.Sal_POS INNER JOIN
    dbo.Sal_POSDet ON 
    dbo.Sal_POS.SalesKey = dbo.Sal_POSDet.SalesKey INNER JOIN
    dbo.ArtWithVendor ON 
    dbo.Sal_POSDet.ArtKey = dbo.ArtWithVendor.ArtKey

    WHERE

    Sal_POS.IsHold=0 and
    Sal_POS.SalesDate between @FromDate  and @ToDate  and
            CASE WHEN  @ArtKey  is null THEN 1 WHEN ArtWithVendor.ArtKey =@ArtKey THEN 1 ELSE 0 END = 1   
            and CASE WHEN @ArtCatKey  is null THEN 1 WHEN ArtWithVendor.ArtCatKey =@ArtCatKey THEN 1 ELSE 0 END = 1     
            and CASE WHEN @ArtGroupKey is null THEN 1 WHEN ArtWithVendor.ArtGroupKey = @ArtGroupKey THEN 1 ELSE 0 END = 1     
            and CASE WHEN @ArtTypeKey  is null  THEN 1 WHEN ArtWithVendor.ArtTypeKey = @ArtTypeKey THEN 1 ELSE 0 END = 1     
            and CASE WHEN @MaterialKey is null THEN 1 WHEN ArtWithVendor.MaterialKey = @MaterialKey  THEN 1 ELSE 0 END = 1     
            and CASE WHEN @ColorKey  is null THEN 1 WHEN ArtWithVendor.ColorKey = @ColorKey  THEN 1 ELSE 0 END = 1     
            and CASE WHEN @VendorKey  is null  THEN 1 WHEN ArtWithVendor.VendorKey = @VendorKey THEN 1 ELSE 0 END = 1     
            and CASE WHEN @VendorTypeKey  is null  THEN 1 WHEN ArtWithVendor.VendorTypeKey = @VendorTypeKey THEN 1 ELSE 0 END = 1     
            and CASE WHEN @OutLetKey  is null  THEN 1 WHEN Sal_POS.OutLetKey = @OutLetKey THEN 1 ELSE 0 END = 1     

    Group by 

    dbo.Sal_POSDet.ArtKey,
    dbo.ArtWithVendor.ArtCode, 
    dbo.ArtWithVendor.ArtName

<小时>

或者，在您的 SELECT 查询之前添加以下内容:

---

Alternatively, add the following before your SELECT query:

IF @ArticleNo IS NOT NULL
BEGIN
   SET ROWCOUNT @ArticleNo
END

然后在您的 SELECT 查询之后，您需要通过执行以下操作来重置 ROWCOUNT:

Then after your SELECT query you need to reset the ROWCOUNT by doing:

IF @ArticleNo IS NOT NULL
 BEGIN
    SET ROWCOUNT 0
 END

<小时>

因此，总体而言，它将类似于:

---

Therefore, overall it will be something like:

   IF @ArticleNo IS NOT NULL
    BEGIN
       SET ROWCOUNT @ArticleNo
    END


SELECT 
dbo.Sal_POSDet.ArtKey,
dbo.ArtWithVendor.ArtCode, 
dbo.ArtWithVendor.ArtName,
Sum(isnull(dbo.Sal_POSDet.Qty,0))as Pair,
Sum(isnull(dbo.Sal_POSDet.Total,0)) as TurnOver
into #temp FROM 
dbo.Sal_POS INNER JOIN
dbo.Sal_POSDet ON 
dbo.Sal_POS.SalesKey = dbo.Sal_POSDet.SalesKey INNER JOIN
dbo.ArtWithVendor ON 
dbo.Sal_POSDet.ArtKey = dbo.ArtWithVendor.ArtKey

WHERE

Sal_POS.IsHold=0 and
Sal_POS.SalesDate between @FromDate  and @ToDate  and
        CASE WHEN  @ArtKey  is null THEN 1 WHEN ArtWithVendor.ArtKey =@ArtKey THEN 1 ELSE 0 END = 1   
        and CASE WHEN @ArtCatKey  is null THEN 1 WHEN ArtWithVendor.ArtCatKey =@ArtCatKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @ArtGroupKey is null THEN 1 WHEN ArtWithVendor.ArtGroupKey = @ArtGroupKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @ArtTypeKey  is null  THEN 1 WHEN ArtWithVendor.ArtTypeKey = @ArtTypeKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @MaterialKey is null THEN 1 WHEN ArtWithVendor.MaterialKey = @MaterialKey  THEN 1 ELSE 0 END = 1     
        and CASE WHEN @ColorKey  is null THEN 1 WHEN ArtWithVendor.ColorKey = @ColorKey  THEN 1 ELSE 0 END = 1     
        and CASE WHEN @VendorKey  is null  THEN 1 WHEN ArtWithVendor.VendorKey = @VendorKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @VendorTypeKey  is null  THEN 1 WHEN ArtWithVendor.VendorTypeKey = @VendorTypeKey THEN 1 ELSE 0 END = 1     
        and CASE WHEN @OutLetKey  is null  THEN 1 WHEN Sal_POS.OutLetKey = @OutLetKey THEN 1 ELSE 0 END = 1     

Group by 

dbo.Sal_POSDet.ArtKey,
dbo.ArtWithVendor.ArtCode, 
dbo.ArtWithVendor.ArtName

IF @ArticleNo IS NOT NULL
 BEGIN
    SET ROWCOUNT 0
 END

但是使用 ROWCOUNT 并不理想，因为它会干扰您的子查询结果.

However using ROWCOUNT is not ideal as it will mess with your sub-query results.

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