週一新幹勁 - 6/9/14 - Sharepoint Report Creation - Stuff(), Join, Case in SQL

新的一週，這週末精神保持的還很好，好好幹吧！也就三週了！

上午活還挺多，要create一個新的report給graduation application，這個很好啊，造福於同學們，主要工作在SQL語句設計上，我要join幾個table調用不同信息，最後把每個學生申請的專業，小專業和具體方向放到record的主表之中。有一步要把多個cell的內容連接放到一個裏面，於是就得用到了for xml 這樣的語句，還有stuff（）string insertion。代碼如下：

SELECT [id] as [ID], [studentID] as [Student ID], [firstName] as [First Name],[lastName] as [Last Name], [reqDate] as [Request Date], [email] as [Email],[gradTerm] as [Graduation Term],[honorsCollege] as [Honors College],(STUFF ((SELECT majorName+', '    FROM [GradApp_Degrees] where [GradApp_Degrees].studentID=Records.studentID for xml path ('')), 1, 0,' ') +  STUFF ((SELECT minor+', '    FROM [GradApp_Minors] where [GradApp_Minors].studentID=Records.studentID for xml path ('')), 1, 0,' ')) as [Applied Minor] , STUFF ((SELECT specialization+', ' FROM [GradApp_Degrees] where [GradApp_Degrees].studentID=Records.studentID for xml path ('')), 1, 0,' ') as [Specialization] FROM [MyState_CLG].[dbo].[GradApp_Records] as Records

下午明白了不是要簡單的把兩個cell內容連起，是要有小專業的attach到大專業去，這樣我就傻逼了，於是就琢磨了一個小時，開始想用case when then end來判斷，後來發現stuff（）method不能嵌套使用，於是就想到了另外加一個column，把三個table join之後select得到的內容，然後join來join去又花了半個小時，最後得出正確結果。

SELECT [id] as [ID], 
[studentID] as [Student ID], 
[firstName] as [First Name],
[lastName] as [Last Name], 
[reqDate] as [Request Date], 
[email] as [Email],
[gradTerm] as [Graduation Term],
[honorsCollege] as [Honors College],
STUFF ( 
(SELECT distinct Degree.majorName + '; '
FROM [MyState_CLG].[dbo].[GradApp_Degrees] Degree 
join [MyState_CLG].[dbo].[GradApp_Records] Records
on Degree.studentID=Records.studentID  for xml path ('')), 1, 0,' ') as [Applied Major] , 
STUFF ( 
(SELECT distinct Degree.majorName + '('+Minors.minor
+'); 'FROM [MyState_CLG].[dbo].[GradApp_Degrees] Degree join [MyState_CLG].[dbo].[GradApp_Minors] Minors
on Degree.majorName	= Minors.majorName and Minors.studentID = Degree.studentID
join [MyState_CLG].[dbo].[GradApp_Records] Records
on Degree.studentID=Records.studentID  for xml path ('')), 1, 0,' ') as[Applied Minor] , 
STUFF ((SELECT distinct specialization+'; ' FROM [MyState_CLG].[dbo].[GradApp_Degrees] 
where [MyState_CLG].[dbo].[GradApp_Degrees].studentID=Records.studentID for xml path ('')), 1, 0,' ') as [Specialization] 
FROM [MyState_CLG].[dbo].[GradApp_Records] as Records

今下午insidestate的server看來是正在升級，於是幹不了report的事了，從今天開始學校就開始用sharepoint 2013了！

SQL裏面有時候報錯說找不到object，是因爲沒有put full DB名字，可以兩種方法，在一組服務器上郵件new query，或者在new query裏面加上use webforms就可以了。

最後把一個mockup做了，一個印第安orientation的申請表，挺有意思。