学习存储过程的时候参看的两个DVBBS的存储过程和两个初步了解后自己写的存储过程(带分页的)

<dvbbs7>
================================

ALTER PROCEDURE dv_list

@boardid int=1,
@pagenow int=1,  --当前页数            
@pagesize int=1, --定义每页面帖子数目
@tl int=0,  --按时间段查询
@topicmode int=0, --专题
@totalrec int output


 AS
set nocount on
declare @int_topnum int
declare @int_timenum int
declare @var_times varchar(5000)

if @pagenow>1
 if @topicmode>0
 begin
 select @int_timenum=(@pagenow-1)*@pagesize
 set rowcount @int_timenum
 select @var_times=lastposttime from Dv_Topic where boardID=@boardID and istop = 0 and mode=@topicmode ORDER BY lastposttime desc

 set rowcount @pagesize
 select TopicID,boardid,title,postusername,postuserid,dateandtime,child,hits,votetotal,lastpost,lastposttime,istop,isvote,isbest,locktopic,Expression,TopicMode,Mode from dv_topic where boardID=@boardID and istop = 0 and mode=@topicmode and lastposttime < @var_times ORDER BY lastposttime desc

 set nocount off
 return
 end
 else
 begin
 select @int_timenum=(@pagenow-1)*@pagesize
 set rowcount @int_timenum
 select @var_times=lastposttime from Dv_Topic where boardID=@boardID and istop = 0 ORDER BY lastposttime desc

 set rowcount @pagesize
 select TopicID,boardid,title,postusername,postuserid,dateandtime,child,hits,votetotal,lastpost,lastposttime,istop,isvote,isbest,locktopic,Expression,TopicMode,Mode from dv_topic where boardID=@boardID and istop = 0 and lastposttime < @var_times ORDER BY lastposttime desc

 set nocount off
 return
 end

else
 if @topicmode>0
 begin
 set rowcount @pagesize
 select TopicID,boardid,title,postusername,postuserid,dateandtime,child,hits,votetotal,lastpost,lastposttime,istop,isvote,isbest,locktopic,Expression,TopicMode,Mode from Dv_topic where boardID=@boardid and istop = 0 and mode=@topicmode ORDER BY lastposttime desc
 end
 else
 begin
 set rowcount @pagesize
 select TopicID,boardid,title,postusername,postuserid,dateandtime,child,hits,votetotal,lastpost,lastposttime,istop,isvote,isbest,locktopic,Expression,TopicMode,Mode from Dv_topic where boardID=@boardid and istop = 0 ORDER BY lastposttime desc
 end

================================

ALTER PROCEDURE dv_toplist

@pagenow int  ,
@pagesize int ,
@reture_value int output,
@intUserRecordCount int output

as
/*定义局部变量*/
declare @intBeginID int
declare @intEndID int
declare @intPageCount int
declare @intRowCount int

/*关闭计数*/
set nocount on

/*求总用户数*/
select @intUserRecordCount = count(*) from [dv_user]
if (@intUserRecordCount = 0) --如果没有用户,则返回零
set @reture_value =0
 
/*判断页数是否正确*/
if (@pagenow - 1) * @pagesize > @intUserRecordCount
set @reture_value =1
--return (-1)

/*求开始userID*/
set @intRowCount = (@pagenow - 1) * @pagesize + 1
/*限制条数*/
set rowcount @intRowCount
select @intBeginID = userid from [dv_user] order by userid desc

/*结束userID*/
set @intRowCount = @pagenow * @pagesize
/*限制条数*/
set rowcount @intRowCount
select @intEndID = userid from [dv_user] order by userid desc

/*恢复系统变量*/
set rowcount 0
set nocount off

select username,useremail,userclass,UserIM,UserPost,JoinDate,userwealth,userid from [dv_user] where userid between @intEndID and @intBeginID order by userid desc
return(@@rowcount)
--select @@rowcount


<zbbs>
================================================
ALTER PROCEDURE zbbs_topic
@page_size int,
@page_now int,
@board int,
@rsc int output

AS
declare @intCount int
declare @lasttime datetime
declare @affrow int
SET NOCOUNT ON

select @intCount=count(*) from z_topic where board=@board and topicid=0

if not (@page_size*(@page_now)<@intCount)
set @page_now=@intCount/@page_size-1

if @intCount=0
begin
set @page_now=0
set @intCount=1
end
set @affrow= @page_now*@page_size+1
set rowcount @affrow
select @lasttime=lasttime from z_topic where board=@board and topicid=0 order by lasttime desc
set rowcount @page_size
select * from z_topic where board=@board and lasttime<=@lasttime and topicid=0 order by lasttime desc
 
  
 set @rsc=@intCount

 RETURN

================================================
ALTER PROCEDURE zbbs_topic2
@page_size int,
@page_now int,
@board int,
@rsc int output

AS
declare @intBeginID int
declare @intEndID int
declare @intRowCount int
declare @intCount int
SET NOCOUNT ON

select @intCount=count(*) from z_topic where board=@board

if not (@page_size*(@page_now)<@intCount)
set @page_now=@intCount/@page_size-1

set @intRowCount=@page_now*@page_size+1
set rowcount @intRowCount
select @intBeginID = id from z_topic where board=@board order by id desc

set @intRowCount=(@page_now+1)*@page_size
set rowcount @intRowCount
select @intEndID=id from z_topic where board=@board order by id desc


set rowcount 0
set nocount off

select * from z_topic where board=@board  and (id between @intEndID and @intBeginID) order by lasttime desc
 
 set @rsc=@intCount

 RETURN

posted @ 2005-12-23 17:16  ZetaChow晓代码  阅读(185)  评论(0编辑  收藏  举报