(a) UNION set operator: The UNION set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains unique values. Syntax: QUERY UNION QUERY; Consider two tables: Table creation: CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY); CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE)); Inserting values: INSERT INTO VENDOR VALUES(123); INSERT INTO VENDOR VALUES(124); INSERT INTO VENDOR VALUES(125); INSERT INTO VENDOR VALUES(126); INSERT INTO PRODUCT VALUES('ABC', 125); INSERT INTO PRODUCT VALUES('DEF', 124); INSERT INTO PRODUCT VALUES('GHI', 124); INSERT INTO PRODUCT VALUES('JKL', 123);

Question

• Solve the problem (pls refer to the inserted image)

Answer 1

Question

Chapter 8, Problem 18RQ

Program Plan Intro

(a)

UNION set operator:

The UNION set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains unique values.

Syntax:

QUERY UNION QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(b)

UNION ALL set operator:

The UNION ALL set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains duplicate values.

Syntax:

QUERY UNION ALL QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(c)

INTERSECT set operator:

The INTERSECT set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that are common in both the tables.

Syntax:

QUERY INTERSECT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(d)

EXCEPT/ MINUS set operator:

The MINUS set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that appear in the first table but not in the second table. The word “EXCEPT” can also be used in the place of “MINUS”.

Syntax:

QUERY EXCEPT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

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• Solve the problem (pls refer to the inserted image)

Write .php file that saves car booking and displays feedback. There are 2 buttons, which are <Book it> <Select a date>. <Select a date> button gets an input from the user, start date and an end date. Book it button can be pressed only if the start date and ending date are chosen by the user. If successful, it books cars for specific dates, with bookings saved. Booking should be in the .json file which contains all the bookings, and have the following information: Start Date. End Date. User Email. Car ID. If the car is already booked for the selected period, a failure message should be displayed, along with a button to return to the homepage. In the booking.json file, if the Car ID and start date and end date matches, it fails Use AJAX: Save bookings and display feedback without page refresh, using a custom modal (not alert).

Write .php file with the html that saves car booking and displays feedback. Booking should be in the .json file which contains all the bookings, and have the following information: Start Date. End Date. User Email. Car ID. There are 2 buttons, which are <Book it> <Select a date> Book it button can be pressed only if the start date and ending date are chosen by the user. If successful, book cars for specific dates, with bookings saved. If the car is already booked for the selected period, a failure message should be displayed, along with a button to return to the homepage. Use AJAX: Save bookings and display feedback without page refresh, using a custom modal (not alert). And then add an additional feature that only free dates are selectable (e.g., calendar view).

Answer 2

Question

Chapter 8, Problem 18RQ

Program Plan Intro

(a)

UNION set operator:

The UNION set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains unique values.

Syntax:

QUERY UNION QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(b)

UNION ALL set operator:

The UNION ALL set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains duplicate values.

Syntax:

QUERY UNION ALL QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(c)

INTERSECT set operator:

The INTERSECT set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that are common in both the tables.

Syntax:

QUERY INTERSECT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(d)

EXCEPT/ MINUS set operator:

The MINUS set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that appear in the first table but not in the second table. The word “EXCEPT” can also be used in the place of “MINUS”.

Syntax:

QUERY EXCEPT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

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Answer 3

Question

Chapter 8, Problem 18RQ

Program Plan Intro

(a)

UNION set operator:

The UNION set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains unique values.

Syntax:

QUERY UNION QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(b)

UNION ALL set operator:

The UNION ALL set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains duplicate values.

Syntax:

QUERY UNION ALL QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(c)

INTERSECT set operator:

The INTERSECT set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that are common in both the tables.

Syntax:

QUERY INTERSECT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(d)

EXCEPT/ MINUS set operator:

The MINUS set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that appear in the first table but not in the second table. The word “EXCEPT” can also be used in the place of “MINUS”.

Syntax:

QUERY EXCEPT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

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Answer 4

Question

Chapter 8, Problem 18RQ

Program Plan Intro

(a)

UNION set operator:

The UNION set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains unique values.

Syntax:

QUERY UNION QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(b)

UNION ALL set operator:

The UNION ALL set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains duplicate values.

Syntax:

QUERY UNION ALL QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(c)

INTERSECT set operator:

The INTERSECT set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that are common in both the tables.

Syntax:

QUERY INTERSECT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(d)

EXCEPT/ MINUS set operator:

The MINUS set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that appear in the first table but not in the second table. The word “EXCEPT” can also be used in the place of “MINUS”.

Syntax:

QUERY EXCEPT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

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Answer 5

Chapter 8, Problem 18RQ

Program Plan Intro

(a)

UNION set operator:

The UNION set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains unique values.

Syntax:

QUERY UNION QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(b)

UNION ALL set operator:

The UNION ALL set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains duplicate values.

Syntax:

QUERY UNION ALL QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(c)

INTERSECT set operator:

The INTERSECT set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that are common in both the tables.

Syntax:

QUERY INTERSECT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Program Plan Intro

(d)

EXCEPT/ MINUS set operator:

The MINUS set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that appear in the first table but not in the second table. The word “EXCEPT” can also be used in the place of “MINUS”.

Syntax:

QUERY EXCEPT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Answer 6

Chapter 8, Problem 18RQ

Program Plan Intro

(a)

UNION set operator:

The UNION set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains unique values.

Syntax:

QUERY UNION QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Answer 7

Chapter 8, Problem 18RQ

Program Plan Intro

(a)

UNION set operator:

The UNION set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains unique values.

Syntax:

QUERY UNION QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Answer 8

Program Plan Intro

(b)

UNION ALL set operator:

The UNION ALL set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains duplicate values.

Syntax:

QUERY UNION ALL QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Answer 9

Program Plan Intro

(b)

UNION ALL set operator:

The UNION ALL set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains duplicate values.

Syntax:

QUERY UNION ALL QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Answer 10

Program Plan Intro

(c)

INTERSECT set operator:

The INTERSECT set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that are common in both the tables.

Syntax:

QUERY INTERSECT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Answer 11

Program Plan Intro

(c)

INTERSECT set operator:

The INTERSECT set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that are common in both the tables.

Syntax:

QUERY INTERSECT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Answer 12

Program Plan Intro

(d)

EXCEPT/ MINUS set operator:

The MINUS set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that appear in the first table but not in the second table. The word “EXCEPT” can also be used in the place of “MINUS”.

Syntax:

QUERY EXCEPT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Answer 13

Program Plan Intro

(d)

EXCEPT/ MINUS set operator:

The MINUS set operator is used to combine the output of two or more than two queries and produce a result. The produced result contains the values (rows) that appear in the first table but not in the second table. The word “EXCEPT” can also be used in the place of “MINUS”.

Syntax:

QUERY EXCEPT QUERY;

Consider two tables:

Table creation:

CREATE TABLE VENDOR(VEND_CODE INT PRIMARY KEY);

CREATE TABLE PRODUCT(PROD_CODE VARCHAR(5), VEND_CODE INT,FOREIGN KEY (VEND_CODE) REFERENCES VENDOR (VEND_CODE));

Inserting values:

INSERT INTO VENDOR VALUES(123);

INSERT INTO VENDOR VALUES(124);

INSERT INTO VENDOR VALUES(125);

INSERT INTO VENDOR VALUES(126);

INSERT INTO PRODUCT VALUES('ABC', 125);

INSERT INTO PRODUCT VALUES('DEF', 124);

INSERT INTO PRODUCT VALUES('GHI', 124);

INSERT INTO PRODUCT VALUES('JKL', 123);

Answer 14

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Answer 15

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Answer 16

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Answer 18

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Answer 19

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Answer 20

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Answer 21

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Answer 25

Ch. 8 - What is a cross join? Give an example of its...Ch. 8 - What three join types are included in the outer...Ch. 8 - Using tables named T1 and T2, write a query...Ch. 8 - Prob. 4RQ Ch. 8 - Prob. 5RQ Ch. 8 - Prob. 6RQ Ch. 8 - Prob. 7RQ Ch. 8 - What does it mean to say that SQL operators are...Ch. 8 - Prob. 9RQ Ch. 8 - Prob. 10RQ

Solution Summary: The author describes the UNION set operator, which is used to combine the output of two or more queries and produce a result.

Chapter 8 Solutions