error 1396 (hy000) operation create user failed for code example
Example 1: 1396(hy00) mysql error
drop user someuser;
flush privileges;
Example 2: 1396(hy00) mysql error
grant all privileges on *.* to 'someuser'@'localhost' with grant option;
drop user someuser;
flush privileges;
grant all privileges on *.* to 'someuser'@'localhost' with grant option;