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SQL Query.. is this possible

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Jan 04.2023

I have two ID’s in a table. IDa and IDb (int)

I want to find records where I have IDa and IDb but no reserve match

For example

RowID | IDa | IDb
1 | 23 | 43
2| 43 | 23

Match so nothing would return. But if row 2 wasn’t there. It would return row 1

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2 Comments(s) ↴

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@kiwisauthorJan 04.2023 — Here's a possible bit of code - returns no rows but not sure if that's because I have none or not.

> SELECT p.* FROM peopleTable p
>
> JOIN secondTable s ON p.linkId = s.linkId
>
> WHERE p.IdA != s.IdA AND p.IdB != s.IdB
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@NogDogJan 04.2023 — Assuming I understand correctly what you want (not a given), I might try:
[code=sql]
select * from peopleTable p1
where not exists(
select RowID from peopleTable p2
where p2.IDa = p1.IDb and p2.IDb = p2.IDa
);
[/code]
PS: [SQL Fiddle test](http://sqlfiddle.com/#!9/fdcd16/1/0)
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