抱歉 - 我的问题标题可能与我尝试这样做无关。
我在CMS的表格中有以下(好吧,类似)
pageID key value
201 title Page 201's title
201 description This is 201
201 author Dave
301 title Page 301's title
301 description This is 301
301 author Bob
正如您可能已经猜到的那样,我需要的是一个将产生的查询:
pageID title description author
201 Page 201's title This is page 201 Dave
301 Page 301's title This is page 301 Bob
如果有人可以提供帮助,我会永远感激 - 我知道这是“请把代码寄给我”,但我绝对卡住了。
提前致谢。
答案 0 :(得分:2)
Select PageId
, Min( Case When key = 'title' Then Value End ) As Title
, Min( Case When key = 'description' Then Value End ) As Description
, Min( Case When key = 'author' Then Value End ) As Author
From Table
Group By PageId
答案 1 :(得分:1)
快速入侵可能
select a.pageID, a.value as Title, b.value as Description, c.value as Author from Table a
left outer join Table b on a.pageID = b.pageID and b.key = 'description'
left outer join Table c on a.pageID = c.pageID and c.key = 'author'
where a.key = 'title'
可能不是最佳解决方案,但它可能适合您。