declare @TopCount int set @TopCount = 100 select top (@TopCount) * from AdventureWorks.HumanResources.Employee 如果有Like等字句，一定要拼Sql的话，也应该使用sp_executesql来执行，示例如下： declare @TopCount int --定义top 数量 set @TopCount = 100 declare @Title nvarchar(100) --定义like内容 set @Title = '%n%' declare @SelectSql nvarchar(max) set @SelectSql = ' select top (@TopCountPar) * from AdventureWorks.HumanResources.Employee where Title like @TitlePar' --使用参数化的top和like --使用sp_executesql 来执行，可以提高效率 exec sp_executesql @SelectSql, N'@TopCountPar as int,@TitlePar as nvarchar(100)', @TopCountPar = @TopCount,@TitlePar = @Title