3387
MySQLERRORNotableAccess ControlHIGH confidence
Role not found
Production Risk
Low — GRANT or REVOKE fails; no change occurs.
How to reproduce
trigger — this will error
trigger — this will error
GRANT nonexistent_role TO 'user'@'localhost';
expected output
ERROR 3387 (HY000): Role 'nonexistent_role'@'%' does not exist.
Fix
Create the role first
Create the role first
CREATE ROLE nonexistent_role; GRANT nonexistent_role TO 'user'@'localhost';
Why this works
The role must exist before it can be granted.
What not to do
✕
Sources
Official documentation ↗
MySQL 8.0 — 3387 ER_ROLE_NOT_FOUND
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