Mysql修改lower_case_table_names

mysql server有个参数叫做 lower_case_table_names，控制表名、字段名的大小写
它可以有3个值：
0：大小写敏感
1：比较名字时 忽略大小写，但创建表时，大写字母也转为小写字母。
2：比较名字时 忽略大小写，创建表时，维持原样。

查看：

[root@bbmg-law-test-01 ~]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 1745
Server version: 5.7.33 MySQL Community Server (GPL)

Copyright (c) 2000, 2021, Oracle and/or its affiliates.

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 mysql;
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> show variables like 'lower_case_table_names';
+------------------------+-------+
| Variable_name          | Value |
+------------------------+-------+
| lower_case_table_names | 0     |
+------------------------+-------+
1 row in set (0.00 sec)

修改：

在my.cnf配置文件中[mysqld]标签的作用区域，增加lower_case_table_names=1的配置，然后重启MySQL服务

[root@bbmg-law-test-01 ~]# vim /etc/my.cnf

在mysqld下 添加或修改 lower_case_table_names = 1

[root@bbmg-law-test-01 ~]# service mysqld restart

再次查看：