基于SSM的租赁管理系统0.3_20161225_数据库设计

数据库设计

1. 概念模型

2. 类模型

3. 生成SQL

 use test;
 /*==============================================================*/
 /* DBMS name:      MySQL 5.0                                    */
 /* Created on:     2016/12/25 19:51:49                          */
 /*==============================================================*/

 drop table if exists cars;

 drop table if exists checks;

 drop table if exists clients;

 drop table if exists items;

 drop table if exists loginlog;

 drop table if exists privileges;

 drop table if exists rents;

 drop table if exists role_privilege;

 drop table if exists roles;

 drop table if exists systemlog;

 drop table if exists user_role;

 drop table if exists users;

 /*==============================================================*/
 /* Table: cars                                                  */
 /*==============================================================*/
 create table cars
 (
    carid                int not null,
    carno                varchar(40),
    type                 varchar(30),
    color                varchar(30),
    value                decimal,
    rentprice            decimal,
    deposit              decimal,
    isrented             bool,
    description          varchar(500),
    primary key (carid)
 );

 /*==============================================================*/
 /* Table: checks                                                */
 /*==============================================================*/
 create table checks
 (
    checkid              int not null,
    uid                  int,
    rentid               int,
    checkdate            datetime,
    status               varchar(30),
    problem              varchar(80),
    indemnify            decimal,
    primary key (checkid)
 );

 /*==============================================================*/
 /* Table: clients                                               */
 /*==============================================================*/
 create table clients
 (
    cid                  int not null,
    cname                varchar(40),
    cidentity            varchar(40),
    phone                varchar(20),
    address              varchar(80),
    sex                  varchar(10),
    occupation           varchar(40),
    primary key (cid)
 );

 /*==============================================================*/
 /* Table: items                                                 */
 /*==============================================================*/
 create table items
 (
    iid                  int not null,
    iname                varchar(40),
    icon                 varchar(80),
    primary key (iid)
 );

 /*==============================================================*/
 /* Table: loginlog                                              */
 /*==============================================================*/
 create table loginlog
 (
    lid                  int not null,
    uid                  int,
    ip                   varchar(40),
    logintime            datetime,
    primary key (lid)
 );

 /*==============================================================*/
 /* Table: privileges                                            */
 /*==============================================================*/
 create table privileges
 (
    pid                  int not null,
    iid                  int,
    pname                varchar(40),
    purl                 varchar(80),
    primary key (pid)
 );

 /*==============================================================*/
 /* Table: rents                                                 */
 /*==============================================================*/
 create table rents
 (
    rentid               int not null,
    uid                  int,
    cid                  int,
    carid                int,
    imprest              decimal,
    price                decimal,
    realpay              decimal,
    begindate            datetime,
    enddate              datetime,
    realenddate          datetime,
    rentstatus           varchar(20),
    primary key (rentid)
 );

 /*==============================================================*/
 /* Table: role_privilege                                        */
 /*==============================================================*/
 create table role_privilege
 (
    rid                  int not null,
    pid                  int not null,
    primary key (rid, pid)
 );

 /*==============================================================*/
 /* Table: roles                                                 */
 /*==============================================================*/
 create table roles
 (
    rid                  int not null,
    rname                varchar(40),
    primary key (rid)
 );

 /*==============================================================*/
 /* Table: systemlog                                             */
 /*==============================================================*/
 create table systemlog
 (
    sid                  int not null,
    uid                  int,
    action               varchar(50),
    actiontime           datetime,
    primary key (sid)
 );

 /*==============================================================*/
 /* Table: user_role                                             */
 /*==============================================================*/
 create table user_role
 (
    uid                  int not null,
    rid                  int not null,
    primary key (uid, rid)
 );

 /*==============================================================*/
 /* Table: users                                                 */
 /*==============================================================*/
 create table users
 (
    uid                  int not null,
    username             varchar(40),
    password             varchar(40),
    uidentity            varchar(40),
    realname             varchar(40),
    sex                  varchar(10),
    address              varchar(80),
    phone                varchar(20),
    position             varchar(20),
    enrolldate           datetime,
    primary key (uid)
 );

 alter table checks add constraint FK_check_rent foreign key (rentid)
       references rents (rentid) on delete restrict on update restrict;

 alter table checks add constraint FK_check_user foreign key (uid)
       references users (uid) on delete restrict on update restrict;

 alter table loginlog add constraint FK_loginlog_user foreign key (uid)
       references users (uid) on delete restrict on update restrict;

 alter table privileges add constraint FK_privilege_item foreign key (iid)
       references items (iid) on delete restrict on update restrict;

 alter table rents add constraint FK_rent_car foreign key (carid)
       references cars (carid) on delete restrict on update restrict;

 alter table rents add constraint FK_rent_client foreign key (cid)
       references clients (cid) on delete restrict on update restrict;

 alter table rents add constraint FK_rent_user foreign key (uid)
       references users (uid) on delete restrict on update restrict;

 alter table role_privilege add constraint FK_role_privilege foreign key (rid)
       references roles (rid) on delete restrict on update restrict;

 alter table role_privilege add constraint FK_role_privilege2 foreign key (pid)
       references privileges (pid) on delete restrict on update restrict;

 alter table systemlog add constraint FK_syslog_user foreign key (uid)
       references users (uid) on delete restrict on update restrict;

 alter table user_role add constraint FK_user_role foreign key (uid)
       references users (uid) on delete restrict on update restrict;

 alter table user_role add constraint FK_user_role2 foreign key (rid)
       references roles (rid) on delete restrict on update restrict;