酒店订餐系统ER图,数据流图DFD 第4页

Create view medical food (disease, name, photo, produce, price)    //药膳菜品

As

Select disease, name, photo, produce, price

From food data

With check option;

Select name

From medical food

Where disease=’便秘’;

Select price

From medical food

Where name=’乌鸡汤’;

Create view snack (name, photo, produce, price)   //小吃

As

Select name, photo, produce, price

From food data

With check option;

Select photo

From snack

Where name=’羊肉串’;

Select produce

From snack

Where photo=’炒粉’;

4.1.2订单模式

Create schema “order list” authorization user

  Create table order list

(Lnumber char (9) primary key and unique,               //订单编号

 China-style food char (20),                           //中餐

 Western-style food char (20),                         //西餐

 medical food char(20),                              //药膳菜品

 snack char (20)                                    //小吃

); 

给用户授权，对订单有所有权力

Grant all privileges

On table order list

To user;

Select China-style food

From order list;

Select Western-style food

From order list;

Insert

Into order list

Values ( ‘9423’‘小鸡炖蘑菇’,’意大利面’,’红枣莲子羹’,’春卷’) 

Update order list

Set medical food=’乌鸡汤’

Where Western-style food =’意大利面’;

Delete

From order list

Where snack=’麻优烫’; 

4.2客户会员注册模块SQL语句

用户模式

Create schema “user” authorization user

  Create table user

( Unumber char (9) primary key and unique,             //会员帐号

 Uname char (20),                                  //姓名

 Usex char (4),                                     //性别                

 Ucode char (9),                                    //密码

 Telephone char(12),                                //常用电话

 Address char(40)                                   //收货具体地点

);

给用户授权，对用户有插入和更新权力

Grant insert, update

On table user

To user;

Insert

Into user

Values (‘2200501’,’李勇’,’男’,’965473’,’13546798246’,’柳水路铁西街27号’);

Insert

Into user

Values (‘2200502’,’刘岑’,’女’,’358462’,’13756428456’,’环江路锦绣街17栋2单元67号’);

Insert

Into user

Values (‘2200503’,’王敏’,’女’,’123658’,’15963248541’,’锦江小区63号’); 

Update user

Set Uname=’张力’

Where Usex=’男’; 

Update user

Set Ucode=’124658’

Where Ucode=”123658’; 

Update user

Set Telephone=’88763512’

Where Address=’黄河路花园街93号’;

4.3后台综合管理模块SQL语句

管理员模式

Create schema “controller” authorization controller

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