HackMD- 林劭寰·Last edited by 林劭寰 on Feb 18, 2025Linked with GitHubContributed by
- Find Customer Referee (SQL)
===
SELECT name
FROM Customer
WHERE referee_id <> 2 OR referee_id IS NULL
ORDER BY id;
SELECT name
FROM Customer
WHERE referee_id <> 2 OR referee_id IS NULL
ORDER BY id;
or
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