1、修改MySQL提示符
（1）连接客户端时通过参数指定
shell>mysql -u root -p --prompt 提示符
C:\Users\Administrator>mysql -u root -p --prompt \h
Enter password: ******
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.5.54 MySQL Community Server (GPL)
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
localhost
（2）连接上客户端后，通过prompt命令修改
mysql>prompt 提示符
localhostprompt mysql>
PROMPT set to 'mysql>'
mysql>
mysql>prompt \u@\h \d> #用户名@服务器名称 当前数据库
PROMPT set to '\u@\h \d>'
root@localhost (none)>
root@localhost (none)>USE test;
Database changed
root@localhost test>
2、MySQL常用命令
（1）显示当前服务器版本
root@localhost test>SELECT VERSION();
+-----------+
| VERSION() |
+-----------+
| 5.5.54 |
+-----------+
1 row in set (0.00 sec)
（2）显示当前日期时间
root@localhost test>SELECT NOW();
+---------------------+
| NOW() |
+---------------------+
| 2017-03-15 15:55:37 |
+---------------------+
1 row in set (0.00 sec)
（3）显示当前用户
root@localhost test>SELECT USER();
+----------------+
| USER() |
+----------------+
| root@localhost |
+----------------+
1 row in set (0.00 sec)
root@localhost test>
3、MySQL语句的规范
（1）关键字与函数名字全部大写
（2）数据库名称、标表名称、字段名称全部小写
（3）SQL语句必须以分号结尾