0
votes
0answers
45 views

Right Outer Join (column name doubt)

I've read the following code a few times trying to figure out what it is doing. "A right outer join is that which returns the unmatched rows from the right tables with matched rows from the left ...
3
votes
1answer
43 views

Doing a join to search geolocation points in zones

I have a series of geolocation points in a table, and a series of "zones" in another; I'd like to do a join to identify which zone each point belongs in (if at all.) Points table looks like: ...
0
votes
2answers
73 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
3k 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
1k 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
909 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 = ...