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MySQL SELECT, INSERT, UPDATE, and DELETE Cheatsheet/Delete matching rows

Remove rows that match a predicate.

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Section: insert, update, and delete

Delete matching rows

sql
sql
DELETE FROM sessions WHERE expires_at < NOW();
Explanation

A classic cleanup task for expired sessions or temporary data.

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Related commands

Same sheet · prioritizing insert, update, and delete
Insert one row
Create a new row with explicit columns.
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Insert multiple rows
Create several rows in one statement.
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Update matching rows
Change values for rows that match a filter.
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Truncate a table
Remove all rows quickly and reset auto-increment counters.
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Upsert with ON DUPLICATE KEY UPDATE
Insert a row or update it when a unique key already exists.
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Replace a row using REPLACE
Insert or delete-and-insert based on unique key conflicts.
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