For example, I have a pet table and a lost pets table. I want to get all of the pets that are NOT lost with 1 join and no sub-selects. Is that possible? A typical join only returns results that are in both tables.
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For example, I have a pet table and a lost pets table. I want to get all of the pets that are NOT lost with 1 join and no sub-selects. Is that possible? A typical join only returns results that are in both tables.
You’re describing an OUTER JOIN as compared to a standard INNER JOIN. Google or check your documentation – I’m sure you’ll find lots of examples. 🙂
SELECT * FROM pets AS p
LEFT OUTER JOIN lost-pets AS lp
ON p.name = lp.name
WHERE lp.id IS NULL