MySQL: Grant **all** privileges on database

Question

I\'ve created database, for example \'mydb\'.

CREATE DATABASE mydb CHARACTER SET utf8 COLLATE utf8_bin;
CREATE USER \'myuser\'@\'%\' IDENTIFIED BY PASSWORD          


        

Answer 1

I had this challenge when working on MySQL Ver 8.0.21

I wanted to grant permissions of a database named my_app_db to the root user running on localhost host.

But when I run the command:

use my_app_db;

GRANT ALL PRIVILEGES ON my_app_db.* TO 'root'@'localhost';

I get the error:

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'my_app_db.* TO 'root'@'localhost'' at line 1>

Here's how I fixed:

Login to your MySQL console. You can change root to the user you want to login with:

mysql -u root -p

Enter your mysql root password

Next, list out all the users and their host on the MySQL server. Unlike PostgreSQL this is often stored in the mysql database. So we need to select the mysql database first:

use mysql;
SELECT user, host FROM user;

Note: if you don't run the use mysql, you get the no database selected error.

This should give you an output of this sort:

+------------------+-----------+
| user             | host      |
+------------------+-----------+
| mysql.infoschema | localhost |
| mysql.session    | localhost |
| mysql.sys        | localhost |
| root             | localhost |
+------------------+-----------+
4 rows in set (0.00 sec)

Next, based on the information gotten from the list, grant privileges to the user that you want. We will need to first select the database before granting permission to it. For me, I am using the root user that runs on the localhost host:

use my_app_db;
GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost';

Note: The GRANT ALL PRIVILEGES ON database_name.* TO 'root'@'localhost'; command may not work for modern versions of MySQL. Most modern versions of MyQL replace the database_name with * in the grant privileges command after you select the database that you want to use.

You can then exit the MySQL console:

exit

That's it.

I hope this helps