Linux环境下MySQL区分大小写的解决办法

在Linux系统中MySQL默认是严格区分大小写。

MySQL在Linux下数据库名、表名、列名、别名大小写规则是这样的： 
　　 1、数据库名与表名是严格区分大小写的； 
　　 2、表的别名是严格区分大小写的； 
　　 3、列名与列的别名在所有的情况下均是忽略大小写的； 
　　 4、变量名也是严格区分大小写的；

 

解决办法：

在/etc/my.cnf 中的[mysqld]后添加添加lower_case_table_names=1，重启MYSQL服务，不区分表名的大小写；
lower_case_table_names参数详解：
其中 0：区分大小写，1：不区分大小写。

操作步骤：

1，查看/etc/my.cnf文件，如下：

#cat /etc/my.cnf

[root@klinthost ~]# cat /etc/my.cnf
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html

[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

# Recommended in standard MySQL setup
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

2，编辑my.cnf文件

# vim /etc/my.cnf

3，输入小写字母i,出现--insert--字样，然后输入：

#lower_case_table_names=1

4，按ESC退出插入模式，然后输入：

#:x

5，重启数据库：service mysqld restart

MySQL关闭命令：service mysqld stop

MySQL启动命令：service mysqld start

也可以使用下面三句命令操作mysql： 
systemctl restart mysqld.service 
systemctl start mysqld.service 
systemctl stop mysqld.service