Mysql-问题解决记录

1.查看当前默认的配置文件位置

# mysqld --verbose --help |grep -A  'Default options'
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /usr/etc/my.cnf ~/.my.cnf

2.创建表报‘MySQL : ERROR 1215 (HY000): Cannot add foreign key constraint’错误

set foreign_key_checks=;