windows下mysql默认是不区分大小写的，但是linux会区分大小写，所以当执行的sql语句有大小写区别时需要注意。
那么怎么设置mysql不区分大小写。
1.windows下
到安装mysql的目录，修改my.ini文件
在文件最后一行加上下面一句话
lower_case_table_names=1
lower_case_table_names = 1
说明 0：区分大小写，1：不区分大小写
效果如下
[mysqld] port = 3306 basedir=F:/mysql-5.7.21-winx64 datadir=F:/mysql-5.7.21-winx64/data max_connections=200 character-set-server=utf8 default-storage-engine=INNODB sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES [mysql] default-character-set=utf8 lower_case_table_names=1
重启mysql
2.linux下
进入etc下面
cd /etc/
编辑my.cnf文件
vi my.cnf
最后一行加上下面一句
lower_case_table_names=1
效果如下
# For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/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=0log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid lower_case_table_names=1
重启mysql：
systemctl restart mysqld
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