How to Resolve MySQL Error 1449: 'The User Specified as a Definer Does Not Exist'?

MySQL Error 1449: The User Specified as a Definer Does Not Exist

This error typically arises when importing views, triggers, or procedures from another database where the creator of the object no longer exists.

Cause:

• The user who defined the object in the original database does not exist on the current database or server.

Solutions:

Option 1: Change the Definer

For Views:

1. Generate ALTER statements using this SQL:

   SELECT CONCAT("ALTER DEFINER=youruser@host VIEW ",
   table_name, " AS ", view_definition, ";")
   FROM information_schema.views
   WHERE table_schema='your-database-name';

2. Copy and execute the ALTER statements.

For Stored Procedures:

Use the following syntax, substituting 'youruser' with the desired user:

UPDATE `mysql`.`proc` p SET definer = 'user@%' WHERE definer='root@%'

Option 2: Create the Missing User

1. Create the missing user with the appropriate privileges:

   • For Local Dev Servers:

     GRANT ALL ON *.* TO 'someuser'@'%' IDENTIFIED BY 'complex-password';
     FLUSH PRIVILEGES;

   • For MariaDB:

     GRANT ALL PRIVILEGES ON *.* TO 'someuser'@'%' IDENTIFIED BY 'complex-password';
     FLUSH PRIVILEGES;

2. Grant only the necessary privileges.

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