How to Fix the MySQLdump: Got Error: 1044 Error When Selecting Database?

How to Fix the MySQLdump: Got Error: 1044 Error When Selecting Database?

MySQLdump is an excellent command-line utility tool that’s used to generate logical backup of the database. When using this command to create backups, you might come across the 1044 Error. In this article, learn more about this error and how to fix it.

What is MySQLdump: Got Error: 1044?

As already mentioned, you come across this error when trying to create a backup using MySQLdump CLI with the following message:

Code:
“mysqldump: Got error: 1044: Access denied for user ‘myuserid’@’%’ to database ‘mydatabasename’ when doing LOCK TABLES”
In more detail, you’ll get this error if you try to dump the database with a user that has insufficient privileges for performing that action. In the above message, the user doesn’t have the “LOCK”privilege.

MySQLdump tool requires the following at the bare minimum:
  • SELECT privilege for the dumped tables
  • SHOW VIEW for the dumped views
  • TRIGGER for the dumped triggers
  • LOCK TABLES in case you’re not using the single-transaction option
You need to ensure to lock the tables that you are to dump before you can dump them.

Along with that, you need to lock the tables with READ LOCAL. This would enable concurrent inserts in MyISAM tables.

The “-lock-tables” flag will lock the tables for each database individually. Thus, it doesn’t guarantee that tables present in the dump files have logical consistency in between the databases.

How to Fix This?

Here are the steps you need to follow to fix this error:

Assign the right privileges to the users who would access the database. For this, you need to log in to your MySQL database and run this command

Code:
“mysql -u root -p”
At this stage, you need to put in the MySQL root password. Follow this with granting all the privileges on the database to the required users. Here’s the command for this:

Code:
GRANT SELECT, LOCK TABLES ON DBNAME.* TO ‘username’@’localhost’;
To grant all privileges, use this command:

Code:
GRANT ALL PRIVILEGES ON DBNAME.* TO ‘username’@’localhost’;
Flush all the privileges and exit from the MySQL using the following command:

Code:
FLUSH PRIVILEGES;
EXIT;
To cap all off, run the exact mysqldump command and add “-single-transaction” flag to it. Here’s how it might look like:

Code:
mysqldump –single-transaction -u user -p DBNAME > backup.sql
So that’s how you fix this error. If problems persist, contact your hosting provider for assistance.
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