mysql -uroot -p
INPUT PASSWORD
use mysql;
show databases;
show tables;
创建数据库
CREATE DATABASE 数据库名称
创建表
CREATE TABLE Person
(
LastName varchar(30),
FirstName varchar,
Address varchar,
Age int(3)
)
新增字段:
alter table ecs_order_info add `newFieldname` varchar(255) NOT NULL COMMENT '备注';
alter table vic_category add status int(1) DEFAULT 1 COMMENT '状态:0.关闭,1.开启';
修改字段:
ALTER TABLE table_name CHANGE old_field_name new_field_name field_type;
删除字段:
ALTER TABLE vic_order DROP services_comment_star;
导入数据
source /root/data.sql
导出
mysqldump -u root -p thedata > ~/thedata.sql
查询
SELECT * FROM book;
服务管理:
sudo service mysql start
service mysql stop
servie mysql status
有的服务名是mysqld
service mysqld start
service mysqld stop
servie mysqld status
systemctl start mysqld
systemctl restart mysqld
systemctl open mysqld
systemctl stop mysqld
更多:https://www.w3school.com.cn/sql/sql_create.asp