shaidan_001的专栏

mysql> use school; Database changed mysql> delimiter mysql>createfunctionfun()−>returnsint−>begin−>selectcount(∗)into@resultfromcourse;−>return@result;−>end−> mysql> create function fun() -> retu

问题：当下载zip版本mysql 5.7.12，启动mysqld会报错，解决办法使用mysqld –initialize-insecure 去生成初始数据库相关信息。E:\Software\Mysql\mysql-5.7.12-winx64\mysql-5.7.12-winx64\bin>mysqld –initialize-insecureE:\Software\Mysql\mysql-5.7.1