饿虎岗资源网 Design By www.oxmxm.com
复制代码 代码如下:
--分页存储过程示例
Alter PROCEDURE [dbo].[JH_PageDemo]
@pageSize int = 9000000000,
@pageIndex int = 1 ,
@orderBy Nvarchar(200) = '' -- 不加order By
AS
SET NOCOUNT ON
--声明变量
DECLARE @select VARCHAR(3048);
DECLARE @from VARCHAR(512);
DECLARE @RowNumber VARCHAR(256);
DECLARE @condition nVARCHAR(3990);
DECLARE @groupBy varchar(50);
DECLARE @sql VARCHAR(3998);
DECLARE @RowStartIndex INT;
DECLARE @RowEndIndex INT;
BEGIN
SET NOCOUNT on
IF @orderBy <> ''
Set @orderBy = ' ORDER BY ' + @orderBy;
else
Set @orderBy = ' ORDER BY Userid ' ;
SET @select = ' select userid,username ,';
--设置排序语句
SET @RowNumber ='ROW_NUMBER() OVER (' + @orderBy + ' ) as RowNumber ';
SET @select = @select + @RowNumber;
SET @from = ' FROM users ';
--设置条件语句@GULevel
SET @condition = ' WHERE 1=1 ';
SET @condition = @condition + 'AND userid > 0';
--分组语句
SET @groupBy = ' GROUP BY USerID '
SET @RowStartIndex = ( @pageIndex -1) * @pageSize + 1
SET @RowEndIndex = @pageIndex * @pageSize ;
--查询结果
SET @sql = 'SET NOCOUNT ON;
WITH ResultTable AS ( ' + @select + @from + @condition +')
SELECT * FROM ResultTable WHERE RowNumber between ' +
Cast(@RowStartIndex AS VARCHAR(32)) + ' AND ' + CAST(@RowEndIndex AS VARCHAR(32))
+ ' ; SELECT count(*) as totalcount ' + @from + @condition + ' '

--PRINT @sql;
EXEC(@sql);
END
饿虎岗资源网 Design By www.oxmxm.com
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除!
饿虎岗资源网 Design By www.oxmxm.com

RTX 5090要首发 性能要翻倍!三星展示GDDR7显存

三星在GTC上展示了专为下一代游戏GPU设计的GDDR7内存。

首次推出的GDDR7内存模块密度为16GB,每个模块容量为2GB。其速度预设为32 Gbps(PAM3),但也可以降至28 Gbps,以提高产量和初始阶段的整体性能和成本效益。

据三星表示,GDDR7内存的能效将提高20%,同时工作电压仅为1.1V,低于标准的1.2V。通过采用更新的封装材料和优化的电路设计,使得在高速运行时的发热量降低,GDDR7的热阻比GDDR6降低了70%。