Đề Thi PE DBI202 - PE - Block 10

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    dbi202
Campus
Hồ Chí Minh
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FALL2024
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PE

Yaga97

FPT Student
Tham gia
1/12/23
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0
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1,213
DBI202 - PE - Block 10
03/11/2024 12h00
 

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Cho bạn 5 phút bạn làm đề (EDIT: NHỚ XÓA CREATE DATABASE NHA MẤY NÍ)
Mã:
CREATE DATABASE EmployeeManagement;
GO

USE EmployeeManagement;
GO

CREATE TABLE Departments (
    DeptID varchar(20) PRIMARY KEY,
    name nvarchar(200),
    office nvarchar(100)
);

CREATE TABLE Employees (
    EmpCode varchar(20) PRIMARY KEY,
    name nvarchar(50),
    BirthDate date,
    DeptID varchar(20),
    FOREIGN KEY (DeptID) REFERENCES Departments(DeptID)
);

CREATE TABLE Dependants (
    Number int,
    EmpCode varchar(20),
    Name nvarchar(50),
    BirthDate Date,
    Role nvarchar(50),
    PRIMARY KEY (Number, EmpCode),
    FOREIGN KEY (EmpCode) REFERENCES Employees(EmpCode) ON DELETE CASCADE
);
1730610353147.png
 
Chỉnh sửa lần cuối:
Cho bạn 5 phút bạn làm đề
Mã:
CREATE DATABASE EmployeeManagement;
GO

USE EmployeeManagement;
GO

CREATE TABLE Departments (
    DeptID varchar(20) PRIMARY KEY,
    name nvarchar(200),
    office nvarchar(100)
);

CREATE TABLE Employees (
    EmpCode varchar(20) PRIMARY KEY,
    name nvarchar(50),
    BirthDate date,
    DeptID varchar(20),
    FOREIGN KEY (DeptID) REFERENCES Departments(DeptID)
);

CREATE TABLE Dependants (
    Number int,
    EmpCode varchar(20),
    Name nvarchar(50),
    BirthDate Date,
    Role nvarchar(50),
    PRIMARY KEY (Number, EmpCode),
    FOREIGN KEY (EmpCode) REFERENCES Employees(EmpCode) ON DELETE CASCADE
);
View attachment 151826
tại sao chỗ dêpndant lại có 2 key v ạ
 
Thiếu thì bay 0.2 hay sao ấy
 
Cho bạn 5 phút bạn làm đề (EDIT: NHỚ XÓA CREATE DATABASE NHA MẤY NÍ)
Mã:
CREATE DATABASE EmployeeManagement;
GO

USE EmployeeManagement;
GO

CREATE TABLE Departments (
    DeptID varchar(20) PRIMARY KEY,
    name nvarchar(200),
    office nvarchar(100)
);

CREATE TABLE Employees (
    EmpCode varchar(20) PRIMARY KEY,
    name nvarchar(50),
    BirthDate date,
    DeptID varchar(20),
    FOREIGN KEY (DeptID) REFERENCES Departments(DeptID)
);

CREATE TABLE Dependants (
    Number int,
    EmpCode varchar(20),
    Name nvarchar(50),
    BirthDate Date,
    Role nvarchar(50),
    PRIMARY KEY (Number, EmpCode),
    FOREIGN KEY (EmpCode) REFERENCES Employees(EmpCode) ON DELETE CASCADE
);
View attachment 151826
sếp ơi mình được sử dụng select top 1 2 3 ... 10 để làm bài không nhỉ
 
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