Error
Error Code:
1404
MySQL Error 1404: Routine Privilege Grant Failed
Description
This error indicates that MySQL failed to automatically grant necessary `EXECUTE` or `ALTER ROUTINE` privileges when a stored program (such as a procedure, function, or trigger) was being created or modified. It commonly occurs when the user attempting the operation lacks sufficient permissions to bestow these privileges.
Error Message
Failed to grant EXECUTE and ALTER ROUTINE privileges
Known Causes
4 known causesInsufficient User Privileges
The user attempting to create or modify the routine does not possess the `GRANT OPTION` privilege or other necessary permissions to grant `EXECUTE` or `ALTER ROUTINE` privileges.
Definer User Lacks Privileges
If a `DEFINER` clause is used, the specified `DEFINER` user may not have the required privileges to execute or alter the routine, causing the automatic grant process to fail.
`log_bin_trust_function_creators` Disabled
When binary logging is enabled, if `log_bin_trust_function_creators` is disabled, MySQL may restrict certain routine creations that involve automatic privilege grants, particularly for functions.
Database/Schema Specific Privileges Missing
The user might have general privileges but lacks specific `GRANT` privileges on the particular database or schema where the routine is being created or altered.
Solutions
4 solutions available1. Grant Privileges to the User easy
Directly grant the necessary EXECUTE and ALTER ROUTINE privileges to the user attempting to create or modify routines.
1
Connect to your MySQL server as a user with sufficient privileges (e.g., root or a user with GRANT OPTION).
2
Execute the following SQL command, replacing 'your_user'@'your_host' with the actual username and host of the user encountering the error, and 'your_database' with the database where the routine resides or will be created.
GRANT EXECUTE, ALTER ROUTINE ON your_database.* TO 'your_user'@'your_host';
FLUSH PRIVILEGES;3
Ask the user who encountered the error to try their operation again.
2. Grant Privileges on Specific Routines medium
Grant EXECUTE and ALTER ROUTINE privileges on a specific stored procedure or function, if the user only needs to interact with that particular routine.
1
Connect to your MySQL server as a user with sufficient privileges.
2
Execute the following SQL command, replacing 'your_routine_name', 'your_user'@'your_host', and 'your_database' accordingly.
GRANT EXECUTE, ALTER ROUTINE ON PROCEDURE your_database.your_routine_name TO 'your_user'@'your_host';
-- Or for a function:
-- GRANT EXECUTE, ALTER ROUTINE ON FUNCTION your_database.your_function_name TO 'your_user'@'your_host';
FLUSH PRIVILEGES;3
Have the user attempt their operation again.
3. Check for User and Host Mismatch easy
Verify that the username and host combination being used to connect to MySQL is correctly specified in the GRANT statements.
1
Identify the exact username and host from which the user is connecting to the MySQL server. This can often be seen in the MySQL error logs or by asking the user.
2
Query the `mysql.user` table to see existing grants for that user. Replace 'your_user' and 'your_host' with the identified credentials.
SELECT User, Host FROM mysql.user WHERE User = 'your_user' AND Host = 'your_host';
SELECT * FROM mysql.user WHERE User = 'your_user' AND Host = 'your_host';3
If the user or host is incorrect, adjust your GRANT statements accordingly. For example, if the user is connecting as 'app_user'@'localhost' but you granted to 'app_user'@'%', you'll need to grant to the correct host.
GRANT EXECUTE, ALTER ROUTINE ON your_database.* TO 'your_user'@'localhost'; -- Example for localhost
FLUSH PRIVILEGES;4. Review MySQL User Privileges for Routine Management medium
Ensure the user has the necessary global or database-level privileges to manage routines, not just execute them.
1
Connect to your MySQL server as a privileged user.
2
View the current privileges for the user. Replace 'your_user'@'your_host' with the target user's credentials.
SHOW GRANTS FOR 'your_user'@'your_host';3
If the output does not include `EXECUTE` and `ALTER ROUTINE` on the relevant database or globally, you need to grant them. Consider granting `ALTER ROUTINE` on the specific database or `ALTER ROUTINE ON *.*` if broader permissions are needed (use with caution).
GRANT ALTER ROUTINE ON your_database.* TO 'your_user'@'your_host';
GRANT EXECUTE ON your_database.* TO 'your_user'@'your_host';
FLUSH PRIVILEGES;