数据库分页查询练习

---创建Employees
create table Employees(
       employeeID varchar2(6) primary key,
       ename varchar2(10) not null,
       Birthday date not null,
       sex char(4) not null,
       address varchar2(20) ,
       zip varchar2(6),
       Phonenumber varchar2(12),
       Emailaddress varchar2(30),
       departmentID varchar2(3) not null
); 
---创建Departments
create table Departments(
       departmentID varchar2(3) primary key,
       departmentName varchar2(30) not null,
       note varchar2(16)

);
---创建Salary
create table Salary(
       employeeID  varchar2(6) primary key,
       income number(8,2) not null,
       outcome number(8,2) not null

);
---------------------------------------------------------------------------
--插入测试数据
insert into Employees(Employeeid,ename,Birthday,sex,Departmentid) values(010001,'王平',to_date('1981-01-05','yyyy-mm-dd'),'女','1');
insert into Employees(Employeeid,ename,Birthday,sex,Departmentid) values(010003,'韦严平',to_date('1979-11-05','yyyy-mm-dd'),'女','2');
insert into Employees(Employeeid,ename,Birthday,sex,Departmentid) values(010021,'吴庆红',to_date('1984-07-02','yyyy-mm-dd'),'女','3');
insert into Employees(Employeeid,ename,Birthday,sex,Departmentid) values(010031,'李方',to_date('1980-8-4','yyyy-mm-dd'),'女','4');
insert into Employees(Employeeid,ename,Birthday,sex,Departmentid) values(010005,'李明',to_date('1985-02-10','yyyy-mm-dd'),'女','5');
--------
insert into Departments(departmentID,departmentName)values(1,'办公室');
insert into Departments(departmentID,departmentName)values(2,'人力资源');
insert into Departments(departmentID,departmentName)values(3,'销售部');
insert into Departments(departmentID,departmentName)values(4,'财务部');
insert into Departments(departmentID,departmentName)values(5,'生产部');
---------
insert into Salary values(010001,3000,100);
insert into Salary values(010003,3000,50);
insert into Salary values(010021,5000,50);
insert into Salary values(010031,3000,50);
insert into Salary values(010005,2500,50);
----------
    ---添加外键约束 
    alter table Employees add constraints fk_e_d_departtmentID foreign key(departmentID) references Departments(departmentID) 
    alter table Employees add constraints ck_sex check(sex='男' or sex='女')
    alter table Departments add constraints un_departmentName unique(departmentName)
    ---增加字段
    alter table Employees add qq number(15)
----------
    update salary  set  income=2890 where employeeID=010001
    update  Departments set departmentName='生产计划部' where departmentName='生产部'
    update salary  set  income=income+100
    

标签：insert,分页,departmentName,into,Departments,查询,varchar2,values,数据库
来源： https://blog.csdn.net/bingmo_/article/details/98608233