- OS : Ubuntu 18.04.1 LTS
- DBMS : mysql 8.0.12
- blog : blog.csdn.net/shiwanwu
- github : github.com/GratefulHeartCoder
- typesetting : Markdown
数据，数据，命根就在数据 ! 操作数据库时，一定要谨慎小心。师万物 这里的代码看看就好，要有自己的判断。遇到抉择，要不耻上下问。
example
stu@Ubuntu:~$ mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 25
Server version: 8.0.12 MySQL Community Server - GPL
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> use db_chinese_medicine;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> create table `t_primary_auto_test`(
-> `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键,自增长',
-> PRIMARY KEY (`id`)
-> )
-> ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci COMMENT='测试表';
Query OK, 0 rows affected (0.10 sec)
mysql> desc t_primary_auto_test;
+-------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-------+------------------+------+-----+---------+----------------+
| id | int(10) unsigned | NO | PRI | NULL | auto_increment |
+-------+------------------+------+-----+---------+----------------+
1 row in set (0.01 sec)
mysql> exit
Bye
stu@Ubuntu:~$
reference
resource
- [手册] https://dev.mysql.com/doc/
- [源码] https://downloads.mysql.com/archives/community/
- [Bug ] https://bugs.mysql.com/
- [ 测试数据 ] https://github.com/datacharmer/test_db
- [规范 - 参考] https://yq.aliyun.com/articles/69327
- [排名 - 参考] https://db-engines.com/en/
- [平台] https://www.csdn.net/
MySQL是一个关系型数据库管理系统，目前是开源的(2018-10)。
权限明确，恰当选择引擎与字符集，命名简洁明了与规范。
MariaDB，Redis，MongoDB，PostgreSQL，Hive，HBase等，可以简单地了解。
Workbench，phpMyAdmin，Navicat等图形化管理工具，可以试用一下。