mysql基础1-数据库安装配置及语句规范
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文章目录
一、思维脑图
1.登录、退出mysql
C:\windows\system32>mysql -uroot -pEnter password: ******Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 8Server version: 5.5.27 MySQL Community Server (GPL)Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement
2.修改命令提示符
C:\windows\system32>mysql -uroot -p --prompt=kingEnter password: ******Welcome to the MySQL monitor. Commands end with ; or \g.Your MySQL connection id is 12Server version: 5.5.27 MySQL Community Server (GPL)Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.# 通过命令修改kingprompt \uPROMPT set to '\u'rootprompt \hPROMPT set to '\h'localhostprompt \h~\u~\D~\dPROMPT set to '\h~\u~\D~\d'localhost~root~Mon Jul 06 18:42:45 2020~(none)prompt mysql>PROMPT set to 'mysql>'mysql>
3.MYSQL常用命令
mysql>SELECT VERSION();+-----------+| VERSION() |+-----------+| 5.5.27 |+-----------+1 row in set (0.00 sec)mysql>select now();+---------------------+| now() |+---------------------+| 2020-07-06 18:50:43 |+---------------------+1 row in set (0.00 sec)mysql>SELECT USER();+----------------+| USER() |+----------------+| root@localhost |+----------------+1 row in set (0.00 sec)
4.MYSQL 语句规范
#折行操作mysql>SELECT -> -> NOW() -> ;+---------------------+| NOW() |+---------------------+| 2020-07-06 18:53:16 |+---------------------+1 row in set (0.00 sec)#引号成对出现mysql>SELECT NOW()' '> ; '> ';+---------------------+| ; |+---------------------+| 2020-07-06 18:56:50 |+---------------------+1 row in set, 1 warning (0.00 sec)
5，补充
1）\c的作用
作用：取消当前输入，当前输入不会执行
mysql>SELECT NOW()\cmysql>
2)修改默认的命令分隔符
mysql>DELIMITER //mysql>SELECT NOW(); -> //+---------------------+| NOW() |+---------------------+| 2020-07-06 19:02:47 |+---------------------+1 row in set (0.00 sec)C:\windows\system32>mysql -uroot -p --delimiter=//Enter password: ******
3）上下键调用之前已输入命令
4）开启输出日志
mysql> \T D:\MYSQL\MYSQLDEMO\mysql1.txtLogging to file 'D:\MYSQL\MYSQLDEMO\mysql1.txt'mysql> SELECT NOW(); -> //+---------------------+| NOW() |+---------------------+| 2020-07-06 19:15:11 |+---------------------+1 row in set (0.00 sec)mysql> DELIMITER ;mysql> \t # 退出日志Outfile disabled.
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