Active5 years, 3 months ago
Apr 15, 2012 I'm converting from SQL Server 2000 to SQL Server 2012. I've encountered either a bug or syntax that I don't understand. I've created a T-SQL example to illustrate the issue. Consider the T-SQL below. Since I'm performing a LEFT OUTER JOIN, why don't all cars appear in the result set. Your Cars table has only 1 car. I think you needed to.
Given the query below there might be multiple rows in dps_markers with the same marker key but we only want to join against the first. If I take this query and remove the top 1 and ORDER BY I get a value for mbg.marker_value but run as it is it always returns null
dstarh
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4 Answers
Use OUTER APPLY instead of LEFT JOIN: Symantec pcanywhere software.
Unlike JOIN, APPLY allows you to reference the u.id inside the inner query.
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Microsoft Sql Server Left Join Syntax
The key to debugging situations like these is to run the subquery/inline view on its' own to see what the output is:
Running that, you would see that the
profile_id
value didn't match the u.id
value of u162231993
, which would explain why any mbg
references would return null
(thanks to the left join; you wouldn't get anything if it were an inner join).You've coded yourself into a corner using
TOP
, because now you have to tweak the query if you want to run it for other users. A better approach would be:With that, you can change the
id
value in the where
clause to check records for any user in the system.Oct 31, 2012 Bugs Bunny - That's All Folks! George Francis. Unsubscribe from George Francis? Sign in to add this video to a playlist. Sep 26, 2013 That's All Folks HD. That's All Folks HD. Skip navigation Sign in. This video is unavailable. Watch Queue Queue. Watch Queue Queue. Remove all; Disconnect. Thats all folks video download. May 08, 2006 movies All Video latest This Just In Prelinger Archives Democracy Now! Occupy Wall Street TV NSA Clip Library. 1 - Merrie Melodies Closing Theme: 'That's All Folks' Author. Identifier thatsallfolks Isclip No Maturecontent No Releasedate 2006-05-07. Plus-circle Add Review. Reviews There are no reviews yet. Be the first one to. Find GIFs with the latest and newest hashtags! Search, discover and share your favorite Thats All Folks GIFs. The best GIFs are on GIPHY. Apr 07, 2012 movies All Video latest This Just In Prelinger Archives Democracy Now! That's all Folks by jimfaekp. Topics Loony Tunes. Loony Tunes Identifier. There are no reviews yet. Be the first one to write a review. DOWNLOAD OPTIONS download 1 file. OGG VORBIS download. Download 1 file.
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Because the
TOP 1
from the ordered sub-query does not have profile_id = 'u162231993'
Remove where u.id = 'u162231993'
and see results then.Run the sub-query separately to understand what's going on.
![Sql server right join Sql server right join](/uploads/1/2/4/8/124816452/236464024.png)
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Damir is correct,
Your subquery needs to ensure that dps_user.id equals um.profile_id, otherwise it will grab the top row which might, but probably not equal your id of 'u162231993'
![Microsoft sql server left outer join syntax Microsoft sql server left outer join syntax](/uploads/1/2/4/8/124816452/719325345.jpg)
Your query should look like this:
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Active2 years, 11 months ago
I have three tables:
- Chapter (ChapterNo, Desc)
- Lesson (LessonNO, Dec, ChapterNo)
- Case (CaseNo, Desc, LessonNo)
As you see, the three tables are all connected. What I want is to return all the chapters (even without lessons in it), all the lessons (even without cases in it) and all the cases.
I am sorry to say but I really don't have an idea so I have no sample code. I hope my explanations are enough.
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ABCDEABCDE
4 Answers
Sandip - Full Stack DeveloperSandip - Full Stack Developer10.5k44 gold badges2020 silver badges5050 bronze badges
Use Left Join query in order to get your desired result
Free rigged 3d models. Learn About Rigging Character:Doing rigging there is two type, one is skeletal rigging, skeletal rigging already bones arranged in the shape of human character, just need to place on the human body and has to start physique on the ski, this is one method and another one is working with IK rigging, this is skeletal joints exist in hierarchy. In this method you have to start to draw bones from parent bone to all your child bones with the shape of human character, this is something difficult to compare first method, because here not only drawing bone on the human body after has to link every child bones to the parent bones and after for controlling all bones on the joint place need IK or FK rigging to handle and move forward, backward and for rotating the parts. All these rigged models works in great way to practice any your private animation projects, once if you practice by using these male or man rigged characters then you can get better idea how to move all the bones in correct way to set the better animation, for animation practice these models rigging is excellent.
As for naming of tables. Don't use
Case
as table name because it is a reserved word for SQL.SELECT CH.ChapterNo,CH.Desc,LE.LessonNo,LE.Dec,CA.CaseNo,CA.Desc FROM Chapter CHLEFT JOIN Lesson LE ON CH.ChapterNo = LE.ChapterNo LEFT JOIN Cases CA ON LE.LessonNo = CA.LessonNO
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mansimansi
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