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/MySQL開發技巧(一)
視頻的數據表結構能帖出來嗎
2015-05-23
源自:MySQL開發技巧(一) 2-3
正在回答
-- 注意自己是否需要建庫
-- create database if not exists mysqldv1;
?
-- 新建 user1 表
create table if not exists user1 (
? id smallint unsigned primary key auto_increment,
? user_name varchar(40),
? over varchar(40)
);
-- 新建 user2 表
create table if not exists user2 (
-- 新建 user_kills 表
create table if not exists user_kills (
? user_id smallint unsigned,
? timestr timestamp default CURRENT_TIMESTAMP,
? kills smallint unsigned
-- 插入 user1 表數據
insert into user1(user_name,over) values ('唐僧', '旃檀功德佛');
insert into user1(user_name,over) values ('豬八戒', '凈壇使者');
insert into user1(user_name,over) values ('孫悟空', '斗戰勝佛');
insert into user1(user_name,over) values ('沙僧', '金身羅漢');
-- 插入 user2 表數據
insert into user2(user_name,over) values ('孫悟空', '成佛');
insert into user2(user_name,over) values ('牛魔王', '被降服');
insert into user2(user_name,over) values ('蛟魔王', '被降服');
insert into user2(user_name,over) values ('鵬魔王', '被降服');
insert into user2(user_name,over) values ('獅駝王', '被降服');
-- 插入 user_kills 表數據
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-01-10'), 10);
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-02-01'), 2);
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-02-05'), 12);
insert into user_kills(user_id, timestr, kills) values (4, timestamp('2013-01-10'), 3);
insert into user_kills(user_id, timestr, kills) values (4, timestamp('2013-02-11'), 5);
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-02-06'), 1);
insert into user_kills(user_id, timestr, kills) values (3, timestamp('2013-01-11'), 20);
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-02-12'), 10);
insert into user_kills(user_id, timestr, kills) values (3, timestamp('2013-02-07'), 17);
create table user1(id int(10) not null auto_increment,name varchar(48) not null,primary key (id))create table user2(id int(10) not null auto_increment,name varchar(48) not null,primary key (id))
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DBA和開發人員都必備的技能,SQL技巧一個好程序員必備技能
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2018-06-29
-- 注意自己是否需要建庫
-- create database if not exists mysqldv1;
?
-- 新建 user1 表
create table if not exists user1 (
? id smallint unsigned primary key auto_increment,
? user_name varchar(40),
? over varchar(40)
);
-- 新建 user2 表
create table if not exists user2 (
? id smallint unsigned primary key auto_increment,
? user_name varchar(40),
? over varchar(40)
);
-- 新建 user_kills 表
create table if not exists user_kills (
? id smallint unsigned primary key auto_increment,
? user_id smallint unsigned,
? timestr timestamp default CURRENT_TIMESTAMP,
? kills smallint unsigned
);
-- 插入 user1 表數據
insert into user1(user_name,over) values ('唐僧', '旃檀功德佛');
insert into user1(user_name,over) values ('豬八戒', '凈壇使者');
insert into user1(user_name,over) values ('孫悟空', '斗戰勝佛');
insert into user1(user_name,over) values ('沙僧', '金身羅漢');
-- 插入 user2 表數據
insert into user2(user_name,over) values ('孫悟空', '成佛');
insert into user2(user_name,over) values ('牛魔王', '被降服');
insert into user2(user_name,over) values ('蛟魔王', '被降服');
insert into user2(user_name,over) values ('鵬魔王', '被降服');
insert into user2(user_name,over) values ('獅駝王', '被降服');
-- 插入 user_kills 表數據
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-01-10'), 10);
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-02-01'), 2);
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-02-05'), 12);
insert into user_kills(user_id, timestr, kills) values (4, timestamp('2013-01-10'), 3);
insert into user_kills(user_id, timestr, kills) values (4, timestamp('2013-02-11'), 5);
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-02-06'), 1);
insert into user_kills(user_id, timestr, kills) values (3, timestamp('2013-01-11'), 20);
insert into user_kills(user_id, timestr, kills) values (2, timestamp('2013-02-12'), 10);
insert into user_kills(user_id, timestr, kills) values (3, timestamp('2013-02-07'), 17);
2015-05-29
create table user1(
id int(10) not null auto_increment,
name varchar(48) not null,
primary key (id)
)
create table user2(
id int(10) not null auto_increment,
name varchar(48) not null,
primary key (id)
)