you asked for an example, the query i posted is an example
didn’t realize you weren’t clear on the different types of joins, sorry
Its not that I’m not clear, it’s just I’ve only ever used/needed to use LEFT JOIN.
On a positive note, another lesson learned.
You learn by making mistakes 
Ok, so now we have this cleared up, INNER JOIN is the right join to use?
And will this affect our query, or we just need to change the join?
Also, if the current join works, what are the benefits of changing the join to INNER, besides doing things probably?
Thanks, Barry
Left Join
Showing rows 0 - 9 (10 total, Query took 0.0060 sec)
Inner Join
Showing rows 0 - 9 (10 total, Query took 0.0044 sec)
Not much difference, maybe when I have 1000’s of records, we might see a change.
The query works well whichever JOIN is used.
Speed is good and does exactly what we need 
I’ll bring this to a close then @r937 I sense you have had enough with this now ha
Unless there is anything important to add?
Thanks again for your patience and guidance, appreciated!
Barry
this type of thinking is going to trip you up sooner than you think
there’s a reason inner and outer joins are different
Ok, we best finish with the right result 
The big question…
INNER or LEFT?
I assume now we understand exactly what we need, INNER is the correct join to use else we’ll be returned redundant records.
Barry
As r937 posted, beware of “it seems to work”
Maybe this will help? For me diagrams make it easier to understand.
Inner Join
Left Outer Join
Right Outer Join
Full Outer Join
3 Likes
Perfect!
I’ll give this a read, any questions will post back, though I think everything is covered here
Bringing back memories ha - I’ve read this before some time ago need a refresh.
Though off first glimpse of the diagrams its very clear INNER JOIN is what I need in this instance.
Thanks for the resource and thanks Rudy!
Until the next thread 
Barry
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