1 ##创建QQ数据库，完成简单的测试
 2 
 3 #创建数据库
 4 DROP DATABASE IF EXISTS MyQQ;
 5 CREATE DATABASE MyQQ;
 6 USE MyQQ;
 7 
 8 #在数据库创建基本数据表
 9 
10 #创建User表
11 DROP TABLE IF EXISTS `User`;
12 CREATE TABLE `User`(
13     qqID INT(11) NOT NULL PRIMARY KEY COMMENT ‘QQ号码‘,
14     `passWord` VARCHAR(50) NOT NULL COMMENT ‘QQ密码‘,
15     lastLogTime DATETIME DEFAULT NOW() COMMENT‘最后一次登录时间‘,
16     onLine INT(4) DEFAULT 0 COMMENT ‘登录状态：0离线 1在线 2隐身‘,
17     `level` INT(4) DEFAULT 1 COMMENT ‘QQ等级‘
18 )COMMENT="QQ用户表";
19 
20 #创建用户信息表
21 DROP TABLE IF EXISTS BaseInfo;
22 CREATE TABLE BaseInfo(
23     qqID INT(11) NOT NULL PRIMARY KEY COMMENT ‘QQ号码‘,
24     NickName VARCHAR(50) COMMENT ‘昵称‘,
25     Sex INT(4) DEFAULT 0 COMMENT ‘性别：0女 1男‘,
26     Age INT(4) COMMENT ‘年龄‘,
27     Province VARCHAR(50) DEFAULT ‘北京‘ COMMENT ‘省份‘,
28     City VARCHAR(50) COMMENT ‘城市‘,
29     Address VARCHAR(255) COMMENT ‘地址‘,
30     Phone VARCHAR(11) COMMENT ‘联系电话‘
31 )COMMENT="用户信息表";
32 
33 #创建QQ好友关系表
34 DROP TABLE IF EXISTS Relation;
35 CREATE TABLE Relation(
36     qqID INT(11) NOT NULL COMMENT ‘QQ号码‘,
37     RelationQQID INT(11) NOT NULL COMMENT ‘QQ好友‘,
38     RelationStatus INT(4) DEFAULT 0 NOT NULL COMMENT ‘好友状态：0好友 1黑名单‘
39 )COMMENT="QQ好友";
40 
41 ##创建表关系（外键）
42 
43 ALTER TABLE BaseInfo
44 ADD CONSTRAINT fk_baseinfo_user FOREIGN KEY (qqID)
45 REFERENCES `User`(qqID);
46 
47 ALTER TABLE Relation
48 ADD CONSTRAINT fk_qqid_user FOREIGN KEY (qqID)
49 REFERENCES `User`(qqID);
50 
51 ALTER TABLE Relation
52 ADD CONSTRAINT fk_reid_user FOREIGN KEY (RelationQQID)
53 REFERENCES `User`(qqID);
54 
55 ##添加测试数据
56 
57 #User表数据
58 INSERT INTO USER(qqID,PASSWORD,lastLogTime,onLine,`level`)
59 VALUES(8855678,‘guest0221‘,‘2008-02-21 16:28:20‘,1,6),
60 (54789625,‘add512#&‘,‘2008-01-16 17:01:35‘,2,11),
61 (88662753,‘admin0219‘,‘2017-07-01 21:08:35‘,0,5);
62 
63 #BaseInfo表数据
64 INSERT INTO BaseInfo(qqID,NickName,Sex,Age,Province,City,Address,Phone)
65 VALUES(8855678,‘独行侠‘,1,38,‘北京‘,‘海淀区‘,‘上地‘,‘13609887788‘),
66 (54789625,‘蝴蝶飞飞‘,1,16,‘北京‘,‘朝阳区‘,‘亚运村‘,‘15665788768‘),
67 (88662753,‘青青草‘,0,20,‘河南省‘,‘安阳‘,‘汤阴‘,‘13268789432‘);
68 
69 #Relation表数据
70 INSERT INTO Relation(qqID,RelationQQID,RelationStatus)
71 VALUES(54789625,88662753,0),
72 (88662753,8855678,1),
73 (54789625,8855678,0);