create proc blog_getpageableentriesbycategoryid
(@blogid int,
@categoryid int,
@pageindex int,
@pagesize int,
@posttype int,
@sortdesc bit)as
declare @pagelowerbound int
declare @pageupperbound int
--1.由@pageindex和@pagesize算出臨時表中tempid邊界
set @pagelowerbound = @pagesize * @pageindex - @pagesize
set @pageupperbound = @pagelowerbound + @pagesize + 1
-- ? only posts ?
create table #temppagedentryids
(tempid int identity (1, 1) not null,
entryid int not null
) --2.選出符合@posttype與@categoryid的blogid，放入臨時表，並根據@sortdesc排序
if not (@sortdesc = 1)
begin
insert into #temppagedentryids (entryid)
select blog.[id]
from blog_content blog
inner join blog_links links on (blog.[id] = links.postid)
inner join blog_linkcategories cats on (links.categoryid =
cats.categoryid)
where blog.blogid = @blogid
and blog.posttype = @posttype
and cats.categoryid = @categoryid
order by blog.[id]
endelse
begin
insert into #temppagedentryids (entryid)
select blog.[id]
from blog_content blog
inner join blog_links links on (blog.[id] = links.postid)
inner join blog_linkcategories cats on (links.categoryid =
cats.categoryid)
where blog.blogid = @blogid
and blog.posttype = @posttype
and cats.categoryid = @categoryid
order by blog.[id] desc --注意該行
end--3.根據邊界@pagelowerbound與@pageupperbound選擇返回的記錄
select content.blogid,
content.[id],
content.title,
content.dateadded,
content.[text],
content.[description],
content.sourceurl,
content.posttype,
content.author,
content.email,
content.sourcename,
content.dateupdated,
content.titleurl,
content.feedbackcount,
content.parentid,
content.postconfig,
content.entryname,
vc.webcount,
vc.aggcount,
vc.weblastupdated,
vc.agglastupdated
from blog_content content
inner join #temppagedentryids tmp on (content.[id] = tmp.entryid)
left join blog_entryviewcount vc on (content.[id] = vc.entryid and vc.blogid = @blogid)
where content.blogid = @blogid and
tmp.tempid > @pagelowerbound and
tmp.tempid < @pageupperbound
order by tmp.tempid
--4.刪除表
drop table #temppagedentryids
--5.返回符合條件的總記錄數(個人覺得返回刪除的臨時表的總數也是不錯的)
select count(blog.[id]) as totalrecords
from blog_content blog
inner join blog_links links on (blog.[id] = links.postid)
inner join blog_linkcategories cats on (links.categoryid = cats.categoryid)
where blog.blogid = @blogid
and blog.posttype = @posttype
and cats.categoryid = @categoryid
go
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