查看MySQL版本
mysql -V或者mysql --version
修改my.cnf
- 用root用戶登錄mysql部署節點，
vim /etc/my.cnf配置文件； - 在
[mysqld]下加入一行：lower_case_table_names=1
重啟MySQL
service mysqld restart
驗證配置生效
1）登錄mysql命令行
[bdoc@mysqlNode]$ mysql -uroot -p'123456'
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1715
Server version: 5.7.27 MySQL Community Server (GPL)
Copyright (c) 2000, 2019, 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.
2）查看配置：show variables like '%case%';
mysql> show variables like '%case%';
+------------------------+-------+
| Variable_name | Value |
+------------------------+-------+
| lower_case_file_system | OFF |
| lower_case_table_names | 1 |
+------------------------+-------+
2 rows in set
我們可以看到lower_case_table_names已經是1了，表示配置更改成功了。再去創建大寫英文名的表，就發現不會出現大寫。
3）驗證大小寫忽略
mysql> create DATABASE DB01;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| db01 |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
mysql>
我們可以看到創建的是大寫的DB01，顯示的是小寫的db01數據庫。