在mariadb中尝试创建用户

Question

我有一个小的mariadb SQL初始化脚本，它以这样的方式开始：

drop user if exists 'uslmonitor';
drop database if exists uslmonitordb;
create database uslmonitordb;

此失败并出现此错误：

ERROR 1064 (42000) at line 1: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'if exists 'uslmonitor'' at line 1

我在盒子上检查了mysql / mariadb的版本，它说：

mysql  Ver 15.1 Distrib 5.5.52-MariaDB, for Linux (x86_64) using readline 5.1

更新：

好的，我已将MariaDB升级为“10.1.21-MariaDB-1~jessie”（我喜欢Docker），我的init脚本摘录现在是这样的：

drop user if exists 'uslmonitor';
drop database if exists uslmonitordb;

flush privileges;

create database uslmonitordb;
create user 'uslmonitor'@localhost identified by 'uslmonitor';

这是失败的：

ERROR 1396 (HY000) at line 7: Operation CREATE USER failed for 'uslmonitor'@'localhost'

Answer 1

这是阅读错误消息的答案之一。

MySQL version 5.5 (with which the MariaDB you're using is compatible) doesn't let you say IF EXISTS on the DROP USER operation.

That didn't come in until version 5.7.8.