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