SQL 动态拼接语句及执行( sp_executesql)

Create proc [dbo].[GetHospitalList]

@pagesize int,
@page int,
@hospitalcode nvarchar(50),
@citycode nvarchar(50),
@type nvarchar(50),
@memo nvarchar(50),
@provincecode nvarchar(50),
@status nvarchar(50)
as
--sp_executesql 执行的参数@sql 需要是nvarchar类型。
declare @sql nvarchar(max)
set @sql='SELECT TOP '+(convert(nvarchar(10),@pagesize))+' totalcount, hospitalcode,NameCn , [status],CreateUser,CreateDate,UpdateDate ,Citycode,[type],memo from ( select TOP '+convert(nvarchar(10),(@page*@pagesize))+' ROW_NUMBER() OVER (ORDER BY namecn) AS RowNum ,count(1) over() as totalcount, hospitalcode,NameCn , a.[status],CreateUser,CreateDate,UpdateDate , a.Citycode,[type],memo from table1 a left join table2 b on b.citycode=a.citycode where 1=1 ' if(@hospitalcode<>'') begin set @sql+=' and hospitalcode=@hospitalcode' end if(@citycode<>'') begin set @sql+=' and a.citycode=@citycode' end if(@type<>'') begin set @sql+=' and [type]=@type' end if(@memo<>'') begin set @sql+=' and memo=@memo' end if(@provincecode<>'') begin set @sql+=' and b.pcode=@provincecode' end set @sql+=' ) AS p WHERE RowNum BETWEEN '+Convert(nvarchar(10),((@page-1)*@pagesize+1))+' AND '+convert(nvarchar(10),(@page * @pagesize))+ ' ORDER BY RowNum' print @sql EXEC sp_executesql @sql ,N'@pagesize int,@page int, @hospitalcode nvarchar(50),@citycode nvarchar(50),@provincecode nvarchar(50),@memo nvarchar(50),@type nvarchar(50)', @pagesize=@pagesize,@page=@page ,@hospitalcode=@hospitalcode,@citycode=@citycode,@provincecode=@provincecode,@memo=@memo,@type=@type

 

posted @ 2019-04-11 11:36  老丹点赵  阅读(2602)  评论(0编辑  收藏  举报