PHPMyAdmin：您可能缺少编辑此例程的必要权限

Question

Error in processing request: No routine with name 'daily_difference' found in database 'chamelis_wp'. You might be lacking the necessary privileges to edit this routine.

Answer 1

If you are using phpMyAdMin (pma) under cPanel, this error results from the fact that cPanel creates a temporary user for every session to log into pma, and therefore the database. If you are working in a hosted environment where you cannot be granted SUPER privileges , and you are creating routines, you are in trouble. Read on.

Stored routines (procedures and functions) in MySQL/Mariadb have a property called DEFINER. This stores the username of the the database user who "owns" that routine. If a db user opens phpMyAdmin (pma) and creates a new routine without explicitly declaring the DEFINER, DEFINER will be populated with the current username. Only a db user that has SUPER permissions can create a routine and declare another user as the DEFINER. Non-SUPER users can only declare themselves as the DEFINER, or leave it blank and the db does it for them. So the db user that you are logged in as gets to be the DEFINER for all routines you create during that session.

The problem you have encountered arises because

a. only the DEFINER of a routine, or a user with SUPER permissions, can edit or export a routine. If a (non-SUPER) user logs in to pma and tries to edit or export an existing routine, then unless they are the DEFINER of that routine they get the error you are seeing, and they cannot access the routine.

b. Even if you have created database user accounts in cPanel, cPanel will not use any of these to launch pma. Under cPanel you are automatically logged using a temp username that it generates. You do not get to see the pma login page - the login happens off-screen - and you are taken straight into the pma home page. You have no control over the username/password used.

d. When you start a new cPanel session (eg at the start of each day's work), cPanel changes the temp db user name that it uses to log you into pma. cPanel usernames all have this pattern: "cpses_db...@localhost", where the dots are filled alphanumerics like "hmxbj8s2". I have just logged in and the pma home page tells me that the current database user is "cpses_dbhmxbj8s2@localhost". If I close pma, log out of cPanel, log back into cPanel then reopen pma, the db user name will change. I just did that and the db user for this new session is "cpses_db0z35t107@localhost".

e. If I had created a new routine during my previous session, then the DEFINER for that routine would still be "cpses_dbhmxbj8s2@localhost". Now that I am logged in as "cpses_db0z35t107@localhost", I cannot edit or export that routine. Without a backup or copy of that routine, I have completely lost access to it (it is now, effectively, "orphaned"). The only way to get access is to recreate it using a script without a DEFINER statement in the current session so the the current db user becomes the DEFINER. That user can now edit the routine. This means that every day you would have to recreate all the procedures you want to work on. If you forget to export all the routines changed during the previous session, then you have LOST THOSE CHANGES.

f. Another problem is that if you are also connecting to the database externally using eg MySQL Workbench, logging in using a db user you have created, then you can do everything except edit any routines created under pma because these have "cpses_db..." user as the DEFINER.

THE SOLUTIONS:

1. Install your own copy of pma in your hosted enviroment if that option is available in cPanel. This will have to be installed in a folder in the public-html section of the site so you can access it directly from your browser eg https://example.com/pmamyadmin/index.php . Login using a user you have created for your database. This user becomes the DEFINER for all your routines and so long as you always use this username, you can always access your routines. (Never use cPanel's pma )

Be aware that having a copy of pma in the public_html section of your site introduces security issues. Definitely require passwords in pma's config and if practical use .htaccess to limit access to just your IP, etc. But that's another topic.

2. Always access the database externally (assuming your host permits this) using a local copy of pma or another client like MySQL Workbench. Again, this allows you to control the username for every session.

FINALLY

3. If neither of these works for you and you must use cPanel's pma, then export all your routines at the end of every session and recreate them (with no DEFINER statement) at the start of the next session. Currently pma doesn't include the DROP in the routine export function (there a change request in for this) so you have to use a database export to get them included. Unless you want a full backup anyway, you just need to export the structure of one table to get this export to work. Make sure you click the "Include DROP..." and "Include Routines..." in the export definition. Edit the export to delete the table definition and globally replace the "DEFINER= cpses_db...@localhost " with "" before using it to recreate the routines next session.

Hope that helps.

Answer 2

I FIX THIS ISSUE IN CPANEL

This shows that there is lack of routines ( Function, Procedures ) privilege for the current user. This will cause even the edit button of routines to be disabled.

In CPanel there is default user that you can not manage their privileges, So, you can not add or remove their privileges.

<<<<< HOW I FIX IT >>>>> :

FIRST

Drop all routines(Function, Procedure) that you have no privilege from your database

SECOND ( import sql file again )

Find the sql file used to import database and remove DEFINER= root @ localhost everywhere. Then import Edited sql file after remove DEFINER= root @ localhost .

I think this solution can help someone. Thanks

Answer 3

It sounds like you don't have permission to edit it, or you're trying to edit it from the wrong DB (schema). Run the following to see which DB it is on: show function status like '%daily%'; show procedure status like '%daily%';

Are you trying to edit it by executing a statement or by using the gui? If by executing a statement, can you provide your statement? If by statement, make sure you've run this first: use db_name_here;

Then try to edit your routine again.

Did your user create the procedure, or another user created it? You may not have permission to modify an user's procedure. You can see who created it by running: show create procedure daily_difference;

Then see if you have permission to edit procedures by running the below statement - you need "ALTER ROUTINE" privilege: show grants for Your_username_here;

If a user with super privilege created it, you won't be able to edit it - you'll need them to, or you will need to get super privilege.

Answer 4

I'm replying partly as I have a work around and partly for the comedy, as GoDaddy sent me this page as a solution to this problem where, yes the problem is defined but no, there's no solution.

I had to rebuild my SPs in phpMyadmin but for the DEFINER where root@localhost was present, using an account I had created and could use - account@localhost. cPanel doesn't expose the root account AFAIK.

I didn't have all my SPs' definitions elsewhere. But I found that in cPanel \ files \ backup \ the files from there of the MySQL DBs had the SP definitions. That may not be in your hosting package. Backing up from phpMyAdmin didn't help as I still lacked the privileges to make the back up with the definitions.