水电费管理系统需求分析----表格的建立（ 电费表和价格表有待完善......）

Posted 2020-08-14 HRZJ

 

 

--建立用户信息表
create table users
(
   users_id  varchar2(12) not null,
   users_name varchar2(12) not null,
   users_username varchar2(6) not null,
   users_userpassword varchar2(6) not null,
   users_phone number(11) not null,
   users_address varchar2(60) not null   
)
--添加注释
comment on column users.users_id
    is \'用户编号（主键）\';
comment on column users.users_name
    is \'用户姓名\';
comment on column users.users_username
    is \'用户账户登录名\';
comment on column users.users_userpassword
    is \'用户账户登录密码\';
comment on column users.users_phone
    is \'用户联系方式\';
comment on column users.users_address
    is \'用户住址\';
    
--添加主键约束
alter table users add constraint PK_users primary key (users_id)
    
--给登录名添加唯一约束
alter table users add constraint UK_users unique (users_username);

--添加三个信息
insert into users values(\'001\',\'张三\',\'zhangs\',\'666666\',\'18865472008\',\'阳光小区15号楼1单元102\');
insert into users values(\'002\',\'李四\',\'lisi01\',\'666666\',\'18865472009\',\'阳光小区14号楼1单元301\');
insert into users values(\'003\',\'王五\',\'wangwu\',\'666666\',\'18865472010\',\'阳光小区8号楼1单元402\');
--查看一下新建的users表
select * from users

 

 

 

--建立水费缴纳情况信息表
create table water
(
   users_id  varchar2(12) not null,       
   water_sfjf varchar2(3)  not null,
   water_time date,
   water_count number(9,2) not null,
   water_price number(9,2) not null,
   water_money number(9,2) not null,
   water_before number(9,2) not null
   
)
--添加注释
comment on column water.users_id
    is \'用户编号（外键）\';
comment on column water.water_sfjf
    is \'上月是否缴纳水费\';
comment on column water.water_time
    is \'缴费时间\';
comment on column water.water_count
    is \'用水量（吨）\';
comment on column water.water_price
    is \'单价\';
comment on column water.water_money
    is \'本次应缴金额\';
comment on column water.water_before
    is \'截止上月共缴水费\';
    
--添加外键
alter table WATER add constraint FK_WATER foreign key (USERS_ID)  references USERS (USERS_ID);


--添加几个水费缴纳情况的信息信息
insert into water values(\'001\',\'是\',sysdate,\'12.3\',\'0.5\',\'6.15\',\'275.5\');
insert into water values(\'002\',\'是\',sysdate,\'16\',\'0.5\',\'8\',\'395.7\');
insert into water values(\'003\',\'否\',\'\',\'6\',\'0.5\',\'3\',\'78.6\');

--查看一下新建的admin表
select * from water

 

--建立电费缴纳情况信息表
create table power
(
   users_id  varchar2(12) not null,       
   power_sfjf varchar2(3)  not null,
   power_time date,
   power_count number(9,2) not null,
   power_price number(9,2) not null,
   power_money number(9,2) not null,
   power_before number(9,2) not null
   
)
--添加注释
comment on column power.users_id
    is \'用户编号（外键）\';
comment on column power.power_sfjf
    is \'上月是否缴纳电费费\';
comment on column power.power_time
    is \'缴费时间\';
comment on column power.power_count
    is \'用电量（°）\';
comment on column power.power_price
    is \'单价\';
comment on column power.power_money
    is \'本次应缴金额\';
comment on column power.power_before
    is \'截止上月共缴电费\';
    
--添加外键
alter table power add constraint FK_power foreign key (USERS_ID)   references USERS (USERS_ID);


--添加几个水费缴纳情况的信息信息
insert into power values(\'001\',\'否\',\'\',\'12.3\',\'0.5\',\'6.15\',\'275.5\');
insert into power values(\'002\',\'是\',sysdate,\'16\',\'0.5\',\'8\',\'395.7\');
insert into power values(\'003\',\'否\',\'\',\'6\',\'0.5\',\'3\',\'78.6\');

--查看一下新建的admin表
select * from power