16th June 2022: PostgreSQL 14.4 Released!
Unsupported versions: 7.1
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4.9. Deletions

Deletions are performed using the DELETE command:

DELETE FROM weather WHERE city = 'Hayward';
All weather recording belonging to Hayward are removed. One should be wary of queries of the form
DELETE FROM tablename;
Without a qualification, DELETE will simply remove all rows from the given table, leaving it empty. The system will not request confirmation before doing this.