Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
SQL FROM SQL
Message
 
 
To
22/01/2009 08:19:00
Jay Johengen
Altamahaw-Ossipee, North Carolina, United States
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Title:
Miscellaneous
Thread ID:
01375790
Message ID:
01376357
Views:
13
This message has been marked as a message which has helped to the initial question of the thread.
>Related question. After a record has been added to Covr table, there is no corresponding InsCarr record at that point. My SQL is only returning 2 records because
>it's looking at InsCarr matches and that's all it finds. How can I get all three records from Covr regardless of what is in InsCarr?
>
>SELECT Seq,CarName,Rec ;
>	FROM InsCarr ;
>	JOIN (SELECT PADL(Seq_Num,4,'0') AS Seq,RECNO() AS Rec,cvCarr ;
>		FROM covr WITH (BUFFERING=.T.) ;
>		WHERE Pat_No=Patient.PtPn AND CvPS=THISFORMInsuranceLevel AND ! DELETED() ) Covr ;
>		ON InsCarr=cvCarr ;
>	ORDER BY 1 ;
>	INTO CURSOR SequenceList
>
Looks like you need a right join from InsCarr to this derived table. Or switch the order and make derived first, then InsCarr and use a LEFT JOIN. For some unknown reason I prefer left joins to right joins though they should operate the same.
If it's not broken, fix it until it is.


My Blog
Previous
Reply
Map
View

Click here to load this message in the networking platform