First check all the user and host from MySQL.user table with the help of select statement as shown below
mysql> select user,host from MySQL.user;
The following is the output
+------------------+-----------+ | user | host | +------------------+-----------+ | Bob | % | | Manish | % | | User2 | % | | mysql.infoschema | % | | mysql.session | % | | mysql.sys | % | | root | % | | @UserName@ | localhost | | Adam Smith | localhost | | James | localhost | | John | localhost | | John Doe | localhost | | User1 | localhost | | am | localhost | | hbstudent | localhost | | mysql.infoschema | localhost | | mysql.session | localhost | +------------------+-----------+ 17 rows in set (0.00 sec)
Now, drop the user ‘hbstudent’ from MySQL.user table. The query is as follows −
mysql> drop user 'hbstudent'@'localhost'; Query OK, 0 rows affected (0.17 sec)
Now check the MySQL.user table to verify the user still exist in MySQL.user table or not. The query is as follows −
mysql> select user,host from MySQL.user;
The following is the output
+------------------+-----------+ | user | host | +------------------+-----------+ | Bob | % | | Manish | % | | User2 | % | | mysql.infoschema | % | | mysql.session | % | | mysql.sys | % | | root | % | | @UserName@ | localhost | | Adam Smith | localhost | | James | localhost | | John | localhost | | John Doe | localhost | | User1 | localhost | | am | localhost | | mysql.infoschema | localhost | | mysql.session | localhost | +------------------+-----------+ 16 rows in set (0.00 sec)