(编辑：jimmy 日期: 2024/12/27 浏览：2)
最近跟项目，写后台需要用到SQL语句，就整理了一下mysql建表常用sql语句，并写几个可执行SQL脚本，方便日后复习查看以及使用：
连接：mysql -h主机地址 -u用户名 －p用户密码 （注:u与root可以不用加空格，其它也一样）
断开：exit （回车）
创建授权：grant select on 数据库.* to 用户名@登录主机 identified by \"密码\"
修改密码：mysqladmin -u用户名 -p旧密码 password 新密码
删除授权: revoke select,insert,update,delete om *.* from test2@localhost;
显示数据库：show databases;
显示数据表：show tables;
显示表结构：describe 表名;
创建库：create database 库名;
删除库：drop database 库名;
使用库(选中库)：use 库名;
创建表：create table 表名 (字段设定列表);
删除表：drop table 表名;
修改表：alter table t1 rename t2
查询表：select * from 表名;
清空表：delete from 表名;
备份表: mysqlbinmysqldump -h(ip) -uroot -p(password) databasename tablename > tablename.sql
恢复表: mysqlbinmysql -h(ip) -uroot -p(password) databasename tablename < tablename.sql（操作前先把原来表删除）
增加列：ALTER TABLE t2 ADD c INT UNSIGNED NOT NULL AUTO_INCREMENT,ADD INDEX (c);
修改列：ALTER TABLE t2 MODIFY a TINYINT NOT NULL, CHANGE b c CHAR(20);
删除列：ALTER TABLE t2 DROP COLUMN c;
备份数据库：mysql\bin\mysqldump -h(ip) -uroot -p(password) databasename > database.sql
恢复数据库：mysql\bin\mysql -h(ip) -uroot -p(password) databasename < database.sql
复制数据库：mysql\bin\mysqldump --all-databases > all-databases.sql
修复数据库：mysqlcheck -A -o -uroot -p54safer
文本数据导入： load data local infile \"文件名\" into table 表名;
数据导入导出：mysql\bin\mysqlimport database tables.txt
1.创建用户表示例
//创建用户表示例 /* Navicat MySQL Data Transfer Source Server : localhost_1111 Source Server Version : 50717 Source Host : localhost:1111 Source Database : maven Target Server Type : MYSQL Target Server Version : 50717 File Encoding : 65001 Date: 2018-08-15 22:40:44 */ SET FOREIGN_KEY_CHECKS=0; -- ---------------------------- -- Table structure for user -- ---------------------------- DROP TABLE IF EXISTS `user`; CREATE TABLE `user` ( `pk_id` int(10) NOT NULL AUTO_INCREMENT, `username` varchar(30) NOT NULL, `password` char(32) NOT NULL, `age` int(3) DEFAULT NULL, `info` varchar(255) CHARACTER SET utf8mb4 DEFAULT NULL, `createtime` timestamp NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP, `modifytime` timestamp NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP, `sex` char(1) DEFAULT NULL, PRIMARY KEY (`pk_id`) ) ENGINE=InnoDB AUTO_INCREMENT=34 DEFA
2.创建公司网站主页栏目示例
//某公司网站主页栏目示例 SET FOREIGN_KEY_CHECKS=0; -- ---------------------------- -- Table structure for home -- ---------------------------- DROP TABLE IF EXISTS `home`; CREATE TABLE `home` ( `home_id` int(10) NOT NULL AUTO_INCREMENT, `profile` longtext comment '企业简介', `scope` longtext comment '经营范围', `product` longtext comment '产品介绍', `cooperate` longtext comment '校企合作', `extension` longtext comment '其他', PRIMARY KEY (`home_id`) ) ENGINE=InnoDB AUTO_INCREMENT=34 DEFAULT CHARSET=utf8;
3.创建店铺商品实例
//某电商平台店铺商品实例
create database store; #创建数据库store
use store;
set names utf8;
drop table if exists goods;
create table goods
(
id mediumint unsigned not null auto_increment comment 'Id',
goods_name varchar(150) not null comment '商品名称',
market_price decimal(10,2) not null comment '市场价格',
shop_price decimal(10,2) not null comment '本店价格',
goods_desc longtext comment '商品描述',
is_on_sale enum('是','否') not null default '是' comment '是否上架',
is_delete enum('是','否') not null default '否' comment '是否放到回收站',
addtime datetime not null comment '添加时间',
logo varchar(150) not null default '' comment '原图',
sm_logo varchar(150) not null default '' comment '小图',
mid_logo varchar(150) not null default '' comment '中图',
big_logo varchar(150) not null default '' comment '大图',
mbig_logo varchar(150) not null default '' comment '更大图',
primary key (id),
key shop_price(shop_price),
key addtime(addtime),
key is_on_sale(is_on_sale)
)engine=InnoDB default charset=utf8 comment '商品';
drop table if exists brand;
create table brand
(
id mediumint unsigned not null auto_increment comment 'Id',
brand_name varchar(30) not null comment '品牌名称',
site_url varchar(150) not null default '' comment '官方网址',
logo varchar(150) not null default '' comment '品牌Logo图片',
primary key (id)
)engine=InnoDB default charset=utf8 comment '品牌';
4.餐厅点餐菜单示例
//餐厅点餐菜单示例
/*
SQLyog 企业版 - MySQL GUI v8.14
MySQL - 5.5.27 : Database - db_food
*********************************************************************
*/
/*!40101 SET NAMES utf8 */;
/*!40101 SET SQL_MODE=''*/;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
CREATE DATABASE /*!32312 IF NOT EXISTS*/`db_food` /*!40100 DEFAULT CHARACTER SET utf8 */;
USE `db_food`;
/*Table structure for table `goods` */
DROP TABLE IF EXISTS `goods`;
CREATE TABLE `goods` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`goodsName` varchar(100) DEFAULT NULL,
`price` float DEFAULT NULL,
`goodsDesc` varchar(200) DEFAULT NULL,
`imageLink` varchar(500) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8;
/*Data for the table `goods` */
insert into `goods`(`id`,`goodsName`,`price`,`goodsDesc`,`imageLink`) values (3,'宫保鸡丁',21,'宫保鸡丁哦','D:\\我的文档\\Desktop\\food\\1332059684_58.jpg'),(5,'青椒肉丝',22,'青椒肉丝不好吃','D:\\我的文档\\Desktop\\food\\1332059684_58.jpg'),(8,'21',2,'sd cd','D:\\我的文档\\Desktop\\food\\1332059994_53.jpg'),(9,'鱼香肉丝',9,'四川风味','D:\\我的文档\\Desktop\\food\\1332060047_92.jpg'),(10,'回锅肉',12,NULL,NULL),(11,'热狗肠',32,'说的','D:\\我的文档\\Desktop\\food\\1332060176_81.jpg');
/*Table structure for table `order_goods` */
DROP TABLE IF EXISTS `order_goods`;
CREATE TABLE `order_goods` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`orderId` varchar(50) DEFAULT NULL,
`goodsTotalPrice` float DEFAULT NULL,
`goodsId` int(10) DEFAULT NULL,
`goodsPrice` float DEFAULT NULL,
`goodsNum` int(10) DEFAULT NULL,
`goodsName` varchar(100) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `FK_order_goods_2` (`orderId`),
KEY `FK_order_goods_1` (`goodsId`),
CONSTRAINT `FK_order_goods_1` FOREIGN KEY (`goodsId`) REFERENCES `goods` (`id`),
CONSTRAINT `FK_order_goods_2` FOREIGN KEY (`orderId`) REFERENCES `order_info` (`orderId`)
) ENGINE=InnoDB AUTO_INCREMENT=44 DEFAULT CHARSET=utf8;
/*Data for the table `order_goods` */
insert into `order_goods`(`id`,`orderId`,`goodsTotalPrice`,`goodsId`,`goodsPrice`,`goodsNum`,`goodsName`) values (23,'20130708001514',12,10,12,1,'回锅肉'),(28,'20130708021437',12,10,12,1,'回锅肉'),(31,'20130708110510',22,5,22,1,'青椒肉丝'),(32,'20130708110510',9,9,9,1,'鱼香肉丝'),(33,'20130708110513',12,10,12,1,'回锅肉'),(34,'20130708110513',32,11,32,1,'热狗肠'),(39,'20130708115503',2,8,2,1,'21'),(40,'20130708115508',12,10,12,1,'回锅肉'),(41,'20130708115508',32,11,32,1,'热狗肠'),(42,'20130708115512',22,5,22,1,'青椒肉丝'),(43,'20130708121456',9,9,9,1,'鱼香肉丝');
/*Table structure for table `order_info` */
DROP TABLE IF EXISTS `order_info`;
CREATE TABLE `order_info` (
`orderId` varchar(50) NOT NULL,
`orderStatus` int(10) DEFAULT NULL,
`orderNum` int(10) DEFAULT NULL,
`orderTotalMoney` float DEFAULT NULL,
`userName` varchar(100) DEFAULT NULL,
PRIMARY KEY (`orderId`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*Data for the table `order_info` */
insert into `order_info`(`orderId`,`orderStatus`,`orderNum`,`orderTotalMoney`,`userName`) values ('20130708001514',3,1,12,'admin1'),('20130708021437',1,1,12,'admin1'),('20130708110510',2,2,31,'aaa'),('20130708110513',3,2,44,'aaa'),('20130708115503',1,1,2,'admin1'),('20130708115508',4,2,44,'admin1'),('20130708115512',3,1,22,'admin1'),('20130708121456',4,1,9,'admin1');
/*Table structure for table `user` */
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`userName` varchar(100) DEFAULT NULL,
`password` varchar(50) DEFAULT NULL,
`email` varchar(200) DEFAULT NULL,
`rank` int(1) DEFAULT '0',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;
/*Data for the table `user` */
insert into `user`(`id`,`userName`,`password`,`email`,`rank`) values (1,'admin','123',NULL,1),(8,'aaa','123','ad@1.com',0),(9,'admin1','123',NULL,0);
/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;