--author: longxi zhu
--date: 2016-06-02
--description: get paged list
create procedure usp_cosmos_getpagedjobs
@tablename varchar(50),
@fields varchar(max),
@strwhere varchar(max),--條件
@orderfield varchar(50),
@pageindex int=1,--頁索引
@pagesize int,--每頁顯示條數
@pagecount int output,--總頁數
@totalcount int output--總條數
asbegin
set nocount on;
declare @sql nvarchar(max);
if(isnull(@strwhere,'')='')
begin
set @sql='select @totalcount=count(*)from ' +@tablename;
endelse
begin
set @sql='select @totalcount=count(*) from '+@tablename+' where '+@strwhere
endexec sp_executesql @sql,n'@totalcount int output',@totalcount output;--計算總條數
--計算總頁數
select @pagecount=ceiling((@totalcount+0.0)/@pagesize);
if(isnull(@strwhere,'')='')
begin
set @sql='select * from (select row_number() over(order by '+@orderfield+') as rowid,'+@fields+' from '+@tablename;
endelse
begin
set @sql='select * from (select row_number() over(order by '+@orderfield+') as rowid,'+@fields+' from '+@tablename+' where '+@strwhere;
end--處理頁超出範圍情況
if(@pageindex<=0)
begin
set @pageindex=1;
endif(@pageindex>@pagecount)
begin
set @pageindex=@pagecount;
end--處理開始點和結束點
declare @beginindex int,@endindex int
set @beginindex=(@pageindex-1)*@pagesize+1
set @endindex=@pageindex*@pagesize
--繼續組織sql語句
set @sql=@sql+') as a'+' where rowid between '+convert(varchar,@beginindex) +' and '+convert(varchar,@endindex);
exec (@sql);
set nocount off;
enddeclare @pagecount1 int, @totalcount1 int
exec usp_cosmos_getpagedjobs 'jobs','*','alias like ''%v-lozhu%''','id',3,3,@pagecount1 output,@totalcount1 output
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