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CREATE USER IF NOT EXISTS u1@localhost IDENTIFIED BY 'pw1';
SELECT password FROM mysql.user WHERE user='u1';
password
*2B602296A79E0A8784ACC5C88D92E46588CCA3C3
CREATE USER IF NOT EXISTS u1@localhost IDENTIFIED BY 'pw2';
Warnings:
Note 1973 Can't create user 'u1'@'localhost'; it already exists
SELECT password FROM mysql.user WHERE user='u1';
password
*2B602296A79E0A8784ACC5C88D92E46588CCA3C3
CREATE OR REPLACE USER u1@localhost IDENTIFIED BY 'pw3';
SELECT password FROM mysql.user WHERE user='u1';
password
*77B4A70CEFD76DB9415F36D291E74C110D2738E0
CREATE OR REPLACE USER IF NOT EXISTS u1@localhost IDENTIFIED BY 'pw4';
ERROR HY000: Incorrect usage of OR REPLACE and IF NOT EXISTS
SELECT password FROM mysql.user WHERE user='u1';
password
*77B4A70CEFD76DB9415F36D291E74C110D2738E0
DROP USER IF EXISTS u1@localhost;
DROP USER IF EXISTS u1@localhost;
Warnings:
Note 1974 Can't drop user 'u1'@'localhost'; it doesn't exist
DROP USER u1@localhost;
ERROR HY000: Operation DROP USER failed for 'u1'@'localhost'
CREATE OR REPLACE USER u1@localhost;
CREATE USER u1@localhost;
ERROR HY000: Operation CREATE USER failed for 'u1'@'localhost'
DROP USER u1@localhost;
CREATE USER u1;
CREATE USER u1, u2;
ERROR HY000: Operation CREATE USER failed for 'u1'@'%'
CREATE USER u2;
ERROR HY000: Operation CREATE USER failed for 'u2'@'%'
CREATE OR REPLACE USER u1 IDENTIFIED BY PASSWORD 'password', u2;
ERROR HY000: Password hash should be a 41-digit hexadecimal number
CREATE OR REPLACE USER u1 IDENTIFIED BY PASSWORD 'abcdefghijklmnop', u2;
DROP USER u1;
DROP USER IF EXISTS u1, u2;
Warnings:
Note 1974 Can't drop user 'u1'@'%'; it doesn't exist
DROP USER u2;
ERROR HY000: Operation DROP USER failed for 'u2'@'%'
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