0
votes
2answers
60 views

Is my JOIN syntax not valid? And have I understood JOIN correctly?

I've been reading up a bit regarding JOINs. And i just noticed that I've been writing the syntax a little bit different. Although I don't think there's any problem with it, I would like to hear your ...
4
votes
1answer
824 views

Syntax of INNER JOIN nested inside OUTER JOIN vs. query results

TLDR; If you look at the 2 execution plans, is there an easy answer to which is better? I purposefully did NOT create indexes so it's easier to see what's happening. Following up on my previous ...
2
votes
1answer
312 views

Concatenate one-to-many field in single result?

Say I have the following query: SELECT * FROM AppDetails, AppTags WHERE AppDetails.AppID = '1' AND AppDetails.AppID = AppTags.AppID Which gives the following results: AppID AppName ...
13
votes
2answers
863 views

Peculiar Oracle outer join syntax case

I have seen the following in a query that was supposed to be ported from Oracle outer join syntax to SQL standard outer join syntax: SELECT ... FROM A, B, C, D, E WHERE A.A_ID = B.A_ID AND B.B_ID = ...