1388
MariaDBerrorqueryhigh confidence
UPDATE without WHERE that uses a KEY column blocked by safe update mode
Production Risk
Low — statement blocked; this is a safety feature, not a data risk.
What this means
Safe update mode (SQL_SAFE_UPDATES=1) is active and a DELETE or UPDATE was issued without a WHERE clause that references a key column.
Why it happens
- 1Running an UPDATE or DELETE without a WHERE clause in safe mode
- 2WHERE clause exists but doesn't use a key column
How to reproduce
trigger — this will error
trigger — this will error
SET SQL_SAFE_UPDATES = 1; UPDATE users SET status = 'active';
expected output
ERROR 1388 (HY000): You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column
Fix 1
Add a WHERE clause using a key column
Add a WHERE clause using a key column
UPDATE users SET status = 'active' WHERE id > 0;
Why this works
Safe mode requires a key-based WHERE condition.
Fix 2
Disable safe mode for the session
Disable safe mode for the session
SET SQL_SAFE_UPDATES = 0;
Why this works
Removes the restriction; use with caution.
What not to do
✕
Version notes
Sources
Official documentation ↗
MySQL 8.0 — 1388 ER_UPDATE_WITHOUT_KEY_IN_SAFE_MODE
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