mysql 常用语句
ddl database define language
# 新建数据库
create database if not exists database_name character set 'utf8'
# 新建数据表
create table table_name (
id int (7)
student_name varchar(25)
);
复制表到 新表
create table new_table as select * from table_name;
dql database querry language
dml database modify language
dcl database control language