DROP TABLE IF EXISTS Worker; CREATE TABLE Worker ( WORKER_ID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, FIRST NAME TEXT, LAST NAME TEXT, SALARY INTEGER (15), JOINING DATE DATETIME, DEPARTMENT CHAR(25) INSERT INTO Worker (WORKER_ID, FIRST_NAME, LAST_NAME, SALARY, JOINING_DATE, DEPARTMENT) VALUES (001, 'Monika', 'Arora', 100000, 14-02-20 09.00.00', 'HR), (002, 'Niharika', 'Verma', 80000, '14-06-11 09.00.00', 'Admin'), (003, 'Vishal', 'Singhal', 300000, '14-02-20 09.00.00 'HR'), (004, 'Amitabh', 'Singh' 500000, '14-02-20 09.00.00', 'Admin'), (005, 'Vivek', 'Bhati', 500000, '14-06-11 09.00.00', 'Admin'), (006, 'Vipul', 'Diwan', 200000, '14-06-11 09.00.00', 'Account'), (007, 'Satish', 'Kumar', 75000, '14-01-20 09.00.00', 'Account'), (008, 'Geetika', 'Chauhan', 90000, '14-04-11 09.00.00', 'Admin'); DROP TABLE IF EXISTS Bonus; CREATE TABLE Bonus ( WORKER_REF_ID INTEGER, BONUS AMOUNT INTEGER(10), BONUS DATE DATETIME, FOREIGN KEY (WORKER_REF_ID) REFERENCES Worker (WORKER_ID) ON DELETE CASCADE INSERT INTO Bonus (WORKER_REF_ID, BONUS_AMOUNT, BONUS_DATE) VALUES (001, 5000, 16-02-20¹), (002, 3000, '16-06-11'), (003, 4000, '16-02-20'), (001, 4500, '16-02-20'), (002, 3500, '16-06-11'); CREATE TABLE Title ( WORKER_REF_ID INTEGER, WORKER_TITLE VARCHAR(64), AFFECTED FROM DATETIME, FOREIGN KEY (WORKER_REF_ID) REFERENCES Worker (WORKER_ID) ON DELETE CASCADE INSERT INTO Title (WORKER_REF_ID, WORKER_TITLE, AFFECTED_FROM) VALUES (001, 'Manager', '2016-02-20 00:00:00'), (002, 'Executive', '2016-06-11 00:00:00'), (008, 'Executive', '2016-06-11 00:00:00'), (005, 'Manager', '2016-06-11 00:00:00'), (004, 'Asst. Manager', '2016-06-11 00:00:00'), (007, 'Executive', '2016-06-11 00:00:00'), (006, 'Lead', '2016-06-11 00:00:00'), (003. 'Lead'. '2016-06-11 00:00:00'):
DROP TABLE IF EXISTS Worker; CREATE TABLE Worker ( WORKER_ID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, FIRST NAME TEXT, LAST NAME TEXT, SALARY INTEGER (15), JOINING DATE DATETIME, DEPARTMENT CHAR(25) INSERT INTO Worker (WORKER_ID, FIRST_NAME, LAST_NAME, SALARY, JOINING_DATE, DEPARTMENT) VALUES (001, 'Monika', 'Arora', 100000, 14-02-20 09.00.00', 'HR), (002, 'Niharika', 'Verma', 80000, '14-06-11 09.00.00', 'Admin'), (003, 'Vishal', 'Singhal', 300000, '14-02-20 09.00.00 'HR'), (004, 'Amitabh', 'Singh' 500000, '14-02-20 09.00.00', 'Admin'), (005, 'Vivek', 'Bhati', 500000, '14-06-11 09.00.00', 'Admin'), (006, 'Vipul', 'Diwan', 200000, '14-06-11 09.00.00', 'Account'), (007, 'Satish', 'Kumar', 75000, '14-01-20 09.00.00', 'Account'), (008, 'Geetika', 'Chauhan', 90000, '14-04-11 09.00.00', 'Admin'); DROP TABLE IF EXISTS Bonus; CREATE TABLE Bonus ( WORKER_REF_ID INTEGER, BONUS AMOUNT INTEGER(10), BONUS DATE DATETIME, FOREIGN KEY (WORKER_REF_ID) REFERENCES Worker (WORKER_ID) ON DELETE CASCADE INSERT INTO Bonus (WORKER_REF_ID, BONUS_AMOUNT, BONUS_DATE) VALUES (001, 5000, 16-02-20¹), (002, 3000, '16-06-11'), (003, 4000, '16-02-20'), (001, 4500, '16-02-20'), (002, 3500, '16-06-11'); CREATE TABLE Title ( WORKER_REF_ID INTEGER, WORKER_TITLE VARCHAR(64), AFFECTED FROM DATETIME, FOREIGN KEY (WORKER_REF_ID) REFERENCES Worker (WORKER_ID) ON DELETE CASCADE INSERT INTO Title (WORKER_REF_ID, WORKER_TITLE, AFFECTED_FROM) VALUES (001, 'Manager', '2016-02-20 00:00:00'), (002, 'Executive', '2016-06-11 00:00:00'), (008, 'Executive', '2016-06-11 00:00:00'), (005, 'Manager', '2016-06-11 00:00:00'), (004, 'Asst. Manager', '2016-06-11 00:00:00'), (007, 'Executive', '2016-06-11 00:00:00'), (006, 'Lead', '2016-06-11 00:00:00'), (003. 'Lead'. '2016-06-11 00:00:00'):
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Concept explainers
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
Question
Transcribed Image Text:```sql
-- Drop the Worker table if it exists
DROP TABLE IF EXISTS Worker;
-- Create the Worker table
CREATE TABLE Worker (
WORKER_ID INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
FIRST_NAME TEXT,
LAST_NAME TEXT,
SALARY INTEGER(15),
JOINING_DATE DATETIME,
DEPARTMENT CHAR(25)
);
-- Insert data into the Worker table
INSERT INTO Worker
(WORKER_ID, FIRST_NAME, LAST_NAME, SALARY, JOINING_DATE, DEPARTMENT) VALUES
(001, 'Monika', 'Arora', 100000, '14-02-20 09:00:00', 'HR'),
(002, 'Niharika', 'Verma', 80000, '14-06-11 09:00:00', 'Admin'),
(003, 'Vishal', 'Singhal', 300000, '14-02-20 09:00:00', 'HR'),
(004, 'Amitabh', 'Singh', 500000, '14-02-20 09:00:00', 'Admin'),
(005, 'Vivek', 'Bhati', 500000, '14-06-11 09:00:00', 'Admin'),
(006, 'Vipul', 'Diwan', 200000, '14-06-11 09:00:00', 'Account'),
(007, 'Satish', 'Kumar', 75000, '14-01-20 09:00:00', 'Account'),
(008, 'Geetika', 'Chauhan', 90000, '14-04-11 09:00:00', 'Admin');
-- Drop the Bonus table if it exists
DROP TABLE IF EXISTS Bonus;
-- Create the Bonus table
CREATE TABLE Bonus (
WORKER_REF_ID INTEGER,
BONUS_AMOUNT INTEGER(10),
BONUS_DATE DATETIME,
FOREIGN KEY (WORKER_REF_ID)
REFERENCES Worker(WORKER_ID)
ON DELETE CASCADE
);
-- Insert data into the Bonus table
INSERT INTO Bonus
(WORKER_REF_ID, BONUS_AMOUNT, BONUS_DATE) VALUES
(001, 5000, '16-02-20'),
(002, 3000, '16-06-11'),
(003
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