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alter PROCEDURE [dbo].[Pro_Sys_Page2005]
@TableName nvarchar(4000), --表名
@Columns nvarchar(4000) = '*', --字段名(全部字段为*)
@OrderColumns nvarchar(1000), --排序字段(必须!支持多字段)
@sqlWhere nvarchar(2000) = Null,--条件语句(不用加where)
@pageSize int, --每页多少条记录
@pageIndex int = 1 --指定当前为第几页
AS
BEGIN
Declare @sql nvarchar(4000),@totalRecord int, @TotalPage int, @StartRecord int,@EndRecord int;
if (isnull(@SqlWhere,'')<>'')
begin
set @TableName = @TableName + ' where ' + @sqlWhere--+ ' order by '+@OrderColumns
end
set @sql='select @totalRecord=count(1)from '+@TableName+''
--print @sql
EXECUTE sp_executesql @sql,N'@totalRecord int OUTPUT',@totalRecord OUTPUT--计算总记录数
--select @totalRecord=@@rowcount
--print @totalRecord
select @TotalPage=CEILING((@totalRecord+0.0)/@PageSize) --计算总页数
if @PageIndex<=0
Set @pageIndex = 1
if @pageIndex>@TotalPage
Set @pageIndex = @TotalPage
set @StartRecord = (@pageIndex-1)*@PageSize + 1
set @EndRecord = @StartRecord + @pageSize - 1
set @sql = 'Select * FROM (select ROW_NUMBER() Over(order by ' + @OrderColumns + ') as rowId,' + @Columns + ' from ' + @TableName +') as t where rowId between ' + cast(@StartRecord as nvarchar) + ' and ' + cast( @EndRecord as nvarchar)
print @sql
Exec(@Sql)
select @totalRecord as totalRecord ,@TotalPage as pageCount--总记录数,总页数
END
如果 sql语句包含group by 那么记录总数就会取group by的最后一行的值
应该怎么改才可以获取准确的记录总数呢
@@rowcount
select @totalRecord=count(*) from tablename