The user who created the object was deleted from the database (most common) Database migrated to a different server without transferring the original user account User renamed or dropped, leaving objects with references to the old name

Is the "1449" error serious?

Yes. This is a high-severity error that usually blocks work until it is fixed, but the steps above resolve it.

How to fix ERROR 1449: The user specified as a definer does not exist in MySQL

MySQLINTERMEDIATEHIGHUpdated Dec 22, 2025· 320 views

MySQL error 1449 occurs when a stored procedure, view, trigger, or event references a user account that no longer exists. The definer is the user who originally created the object, and MySQL cannot execute it without verifying the definer's privileges.

Quick fix

Fixes 1449

SELECT DEFINER, ROUTINE_NAME, ROUTINE_TYPE FROM information_schema.ROUTINES 
WHERE ROUTINE_SCHEMA = "your_database";

Identify which user is the missing definer
Check if the definer user exists
Recreate the missing definer user (if needed)
Change the definer to an existing user (MySQL 5.7)

mysql — error

$SELECT DEFINER, ROUTINE_NAME, ROUTINE_TYPE FROM information_schema.ROUTINES 
WHERE ROUTINE_SCHEMA = "your_database";
ERROR 1449: The user specified as a definer does not exist

What this error means

In MySQL, every stored procedure, view, trigger, and event has a "definer"—the user who created it. When the object is executed, MySQL checks the definer's privileges to enforce access control. If MySQL cannot find the definer user, it cannot proceed and throws error 1449. This is a critical safety mechanism: MySQL refuses to execute objects with unknown owners, preventing potential security issues. The error becomes visible when you try to call the procedure, select from the view, or trigger the event.

Typical symptoms

SELECT, INSERT, or UPDATE queries fail when touching a view with "ERROR 1449"
Stored procedures cannot be called: "user specified as a definer does not exist"
Database dumps fail during import with definer-related errors
Triggers fail silently or produce error 1449 when their events occur
Database migration to a new server causes error 1449 on inherited objects
Application queries work with normal users but fail with error 1449 in automated tasks

Common causes

The user who created the object was deleted from the database (most common)
Database migrated to a different server without transferring the original user account
User renamed or dropped, leaving objects with references to the old name
Host mismatch: definer is "user"@"localhost" but the object is accessed from "user"@"%"
MySQL upgrade or downgrade changed user authentication plugins, making accounts inaccessible
Dump file imported without the original definer user being created first
Replication or backup restore created objects on target server without their defining users

How to fix "ERROR 1449: The user specified as a definer does not exist"

1Identify which user is the missing definer

The error message shows the definer username and host. For MySQL 5.7, query the mysql.proc table:

sql

SELECT DEFINER, ROUTINE_NAME, ROUTINE_TYPE FROM information_schema.ROUTINES 
WHERE ROUTINE_SCHEMA = "your_database";

For views:

sql

SELECT DEFINER, TABLE_NAME FROM information_schema.VIEWS 
WHERE TABLE_SCHEMA = "your_database";

Note the exact definer format (e.g., "root"@"localhost").

2Check if the definer user exists

Query the mysql.user table to see if the definer account exists:

sql

SELECT * FROM mysql.user WHERE User = "missing_user" AND Host = "localhost";

If this returns no rows, the user does not exist and you have two options: recreate it or change the definer.

3Recreate the missing definer user (if needed)

If the user is needed for other reasons, recreate it with appropriate privileges:

sql

CREATE USER IF NOT EXISTS "app_user"@"localhost" IDENTIFIED BY "secure_password";
GRANT ALL PRIVILEGES ON your_database.* TO "app_user"@"localhost";
FLUSH PRIVILEGES;

Replace "app_user", "localhost", and "secure_password" with your actual values. After creating the user, the procedures/views should work immediately.

4Change the definer to an existing user (MySQL 5.7)

If you don't want to recreate the original user, update the definer directly in the mysql.proc table:

sql

UPDATE mysql.proc SET DEFINER = "root@localhost" 
WHERE DEFINER = "missing_user@localhost" 
AND db = "your_database";

FLUSH PRIVILEGES;

Verify the change:

sql

SELECT DEFINER, ROUTINE_NAME FROM information_schema.ROUTINES 
WHERE ROUTINE_SCHEMA = "your_database";

5Recreate objects with new definer (MySQL 8.0+)

MySQL 8.0 does not allow direct updates to the system tables. Instead, drop and recreate the object:

sql

DROP PROCEDURE IF EXISTS your_procedure;

CREATE PROCEDURE your_procedure()
DEFINER = "root"@"localhost"
SQL SECURITY DEFINER
BEGIN
  -- Your procedure code here
END;

For views, use ALTER VIEW:

sql

ALTER VIEW your_view SQL SECURITY INVOKER AS
SELECT * FROM your_table;

Using SQL SECURITY INVOKER allows the view to work with the caller's privileges instead of the definer's.

6Prevent the error during future migrations

When exporting databases with mysqldump, exclude definer clauses:

bash

mysqldump --no-definer --single-transaction your_database > backup.sql

Alternatively, remove DEFINER clauses from the dump file before importing:

bash

sed -i "/DEFINER=/s/DEFINER=`[^*]*`\*/DEFINER=CURRENT_USER*/g" backup.sql
mysql your_database < backup.sql

Or configure procedures to use SQL SECURITY INVOKER from the start.

7Verify the fix works

Test the procedure or view to confirm it now executes without error 1449:

sql

-- For a procedure
CALL your_procedure();

-- For a view
SELECT * FROM your_view LIMIT 5;

-- For a trigger (will execute on the next INSERT/UPDATE/DELETE)
INSERT INTO your_table VALUES (...);

If these succeed, the definer issue is resolved.

Advanced notes

SQL SECURITY DEFINER vs INVOKER: By default, stored objects use DEFINER, meaning they execute with the definer's privileges. This is safer for complex operations but fails if the definer is missing. SQL SECURITY INVOKER executes with the caller's privileges, bypassing definer checks but requiring the caller to have all necessary permissions.

In replicated setups, error 1449 often occurs on slave servers because replication transfers the original definer name, not the actual user. Set event_scheduler to OFF on slaves if they don't need to execute events:

sql

SET GLOBAL event_scheduler = OFF;

For multi-host setups, use "user"@"%" instead of hardcoding hostnames to improve portability across servers.

When using connection pooling or load balancers, ensure the definer user exists on all MySQL instances in the cluster or use INVOKER security mode instead.

Frequently asked questions

What does "1449" mean?: In MySQL, every stored procedure, view, trigger, and event has a "definer"—the user who created it. When the object is executed, MySQL checks the definer's privileges to enforce access control. If MySQL cannot find the definer user, it cannot proceed and throws error 1449.
How do I fix "1449"?: MySQL error 1449 occurs when a stored procedure, view, trigger, or event references a user account that no longer exists. The definer is the user who originally created the object, and MySQL cannot execute it without verifying the definer's privileges.
What causes "1449"?: The user who created the object was deleted from the database (most common) Database migrated to a different server without transferring the original user account User renamed or dropped, leaving objects with references to the old name
Is the "1449" error serious?: Yes. This is a high-severity error that usually blocks work until it is fixed, but the steps above resolve it.