如何在select top query中使用Parameter [英] How to use Parameter in select top query

问题描述

如何在select top查询中使用参数lke this



声明@Tot_10 int

从Incentive_0_3_BD顺序中选择Top @Total FPG FPG

How to use Parameter in select top query lke this

declare @Tot_10 int
select Top @Total FPG from Incentive_0_3_BD order by FPG

推荐答案

DECLARE @Total INT
SET @Total = 2
select Top (@Total) FPG from Incentive_0_3_BD order by FPG

将其设为动态查询。

Make it a dynamic query.

declare @mysql varchar(max)
declare @topCount varchar(4)
set @topCount='5'
set @mysql='select top ' + @topCount + '* from TABLE_NAME'

exec(@mysql)

你不能直接这样做：

You can't do it directly:

declare @Tot_10 int

DECLARE @myCommand NVARCHAR(1024)
SET @myCommand = 'select Top ' + CAST(@Tot_10 AS NVARCHAR) + 'FPG from Incentive_0_3_BD order by FPG'
EXECUTE (@myCommand)

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