Data Definition Language (DDL): It is used for creating tables and other structures. They perform operations like, creating tables, modifying database , and removing database. Table Creation: Creating table comes under Data Definition Language (DDL). Syntax for creating table is as follows: CREATE TABLE TABLE_NAME ( Column1 datatype, Column2 datatype, … );

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Answer 1

Question

Chapter 3, Problem 13E

Program Plan Intro

Data Definition Language (DDL): It is used for creating tables and other structures. They perform operations like, creating tables, modifying database, and removing database.

Table Creation:

Creating table comes under Data Definition Language (DDL). Syntax for creating table is as follows:

CREATE TABLE TABLE_NAME (

Column1 datatype,

Column2 datatype,

…

);

Explanation of Solution

b.

Query:

create table car (license char(20) primary key, model varchar(70) not null, year int);

Explanation:

The above query is used cr...

Explanation of Solution

c.

Query:

create table accident (report_number char(20) primary key, date date(70), location varchar(50));

Explanation:

The above query is used cre...

Explanation of Solution

d.

Query:

create table owns (driver_id char(20) references driver, license char(20) references car, primary key(driver_id, license));

Explanation:...

Explanation of Solution

e.

Query:

create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )

Explanation:

The above query is used creat...

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8. Name and Email AddressesWrite a program that keeps names and email addresses in a dictionary as key-value pairs. The program should display a menu that lets the user look up a person’s email address, add a new name and email address, change an existing email address, and delete an existing name and email address. The program should pickle the dictionary and save it to a file when the user exits the program. Each time the program starts, it should retrieve the dictionary from the file and unpickle it. How would the user be able to use the program?

Please solve and answer the question correctly please. Thank you!!

Answer 2

Question

Chapter 3, Problem 13E

Program Plan Intro

Data Definition Language (DDL): It is used for creating tables and other structures. They perform operations like, creating tables, modifying database, and removing database.

Table Creation:

Creating table comes under Data Definition Language (DDL). Syntax for creating table is as follows:

CREATE TABLE TABLE_NAME (

Column1 datatype,

Column2 datatype,

…

);

Explanation of Solution

b.

Query:

create table car (license char(20) primary key, model varchar(70) not null, year int);

Explanation:

The above query is used cr...

Explanation of Solution

c.

Query:

create table accident (report_number char(20) primary key, date date(70), location varchar(50));

Explanation:

The above query is used cre...

Explanation of Solution

d.

Query:

create table owns (driver_id char(20) references driver, license char(20) references car, primary key(driver_id, license));

Explanation:...

Explanation of Solution

e.

Query:

create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )

Explanation:

The above query is used creat...

Expert Solution & Answer

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Answer 3

Question

Chapter 3, Problem 13E

Program Plan Intro

Data Definition Language (DDL): It is used for creating tables and other structures. They perform operations like, creating tables, modifying database, and removing database.

Table Creation:

Creating table comes under Data Definition Language (DDL). Syntax for creating table is as follows:

CREATE TABLE TABLE_NAME (

Column1 datatype,

Column2 datatype,

…

);

Explanation of Solution

b.

Query:

create table car (license char(20) primary key, model varchar(70) not null, year int);

Explanation:

The above query is used cr...

Explanation of Solution

c.

Query:

create table accident (report_number char(20) primary key, date date(70), location varchar(50));

Explanation:

The above query is used cre...

Explanation of Solution

d.

Query:

create table owns (driver_id char(20) references driver, license char(20) references car, primary key(driver_id, license));

Explanation:...

Explanation of Solution

e.

Query:

create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )

Explanation:

The above query is used creat...

Expert Solution & Answer

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Answer 4

Question

Chapter 3, Problem 13E

Program Plan Intro

Data Definition Language (DDL): It is used for creating tables and other structures. They perform operations like, creating tables, modifying database, and removing database.

Table Creation:

Creating table comes under Data Definition Language (DDL). Syntax for creating table is as follows:

CREATE TABLE TABLE_NAME (

Column1 datatype,

Column2 datatype,

…

);

Explanation of Solution

b.

Query:

create table car (license char(20) primary key, model varchar(70) not null, year int);

Explanation:

The above query is used cr...

Explanation of Solution

c.

Query:

create table accident (report_number char(20) primary key, date date(70), location varchar(50));

Explanation:

The above query is used cre...

Explanation of Solution

d.

Query:

create table owns (driver_id char(20) references driver, license char(20) references car, primary key(driver_id, license));

Explanation:...

Explanation of Solution

e.

Query:

create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )

Explanation:

The above query is used creat...

Expert Solution & Answer

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Answer 5

Chapter 3, Problem 13E

Program Plan Intro

Data Definition Language (DDL): It is used for creating tables and other structures. They perform operations like, creating tables, modifying database, and removing database.

Table Creation:

Creating table comes under Data Definition Language (DDL). Syntax for creating table is as follows:

CREATE TABLE TABLE_NAME (

Column1 datatype,

Column2 datatype,

…

);

Explanation of Solution

b.

Query:

create table car (license char(20) primary key, model varchar(70) not null, year int);

Explanation:

The above query is used cr...

Explanation of Solution

c.

Query:

create table accident (report_number char(20) primary key, date date(70), location varchar(50));

Explanation:

The above query is used cre...

Explanation of Solution

d.

Query:

create table owns (driver_id char(20) references driver, license char(20) references car, primary key(driver_id, license));

Explanation:...

Explanation of Solution

e.

Query:

create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )

Explanation:

The above query is used creat...

Answer 6

Chapter 3, Problem 13E

Program Plan Intro

Data Definition Language (DDL): It is used for creating tables and other structures. They perform operations like, creating tables, modifying database, and removing database.

Table Creation:

Creating table comes under Data Definition Language (DDL). Syntax for creating table is as follows:

CREATE TABLE TABLE_NAME (

Column1 datatype,

Column2 datatype,

…

);

Answer 7

Chapter 3, Problem 13E

Program Plan Intro

Data Definition Language (DDL): It is used for creating tables and other structures. They perform operations like, creating tables, modifying database, and removing database.

Table Creation:

Creating table comes under Data Definition Language (DDL). Syntax for creating table is as follows:

CREATE TABLE TABLE_NAME (

Column1 datatype,

Column2 datatype,

…

);

Answer 8

Explanation of Solution

b.

Query:

create table car (license char(20) primary key, model varchar(70) not null, year int);

Explanation:

The above query is used cr...

Answer 9

Explanation of Solution

b.

Query:

create table car (license char(20) primary key, model varchar(70) not null, year int);

Explanation:

The above query is used cr...

Answer 10

Explanation of Solution

c.

Query:

create table accident (report_number char(20) primary key, date date(70), location varchar(50));

Explanation:

The above query is used cre...

Answer 11

Explanation of Solution

c.

Query:

create table accident (report_number char(20) primary key, date date(70), location varchar(50));

Explanation:

The above query is used cre...

Answer 12

Explanation of Solution

d.

Query:

create table owns (driver_id char(20) references driver, license char(20) references car, primary key(driver_id, license));

Explanation:...

Answer 13

Explanation of Solution

d.

Query:

create table owns (driver_id char(20) references driver, license char(20) references car, primary key(driver_id, license));

Explanation:...

Answer 14

Explanation of Solution

e.

Query:

create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )

Explanation:

The above query is used creat...

Answer 15

Explanation of Solution

e.

Query:

create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )

Explanation:

The above query is used creat...

Answer 16

Expert Solution & Answer

Answer 17

Expert Solution & Answer

Answer 18

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Answer 19

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Explanation of Solution

b. Query: create table car (license char(20) primary key, model varchar(70) not null, year int); Explanation: The above query is used cr...

Explanation of Solution

c. Query: create table accident (report_number char(20) primary key, date date(70), location varchar(50)); Explanation: The above query is used cre...

Explanation of Solution

d. Query: create table owns (driver_id char(20) references driver, license char(20) references car, primary key(driver_id, license)); Explanation:...

Explanation of Solution

e. Query: create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) ) Explanation: The above query is used creat...

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Chapter 3 Solutions

b.

Query:

create table car (license char(20) primary key, model varchar(70) not null, year int);

Explanation:

The above query is used cr...

c.

Query:

create table accident (report_number char(20) primary key, date date(70), location varchar(50));

Explanation:

The above query is used cre...

d.

Query:

create table owns (driver_id char(20) references driver, license char(20) references car, primary key(driver_id, license));

Explanation:...

e.

Query:

create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )

Explanation:

The above query is used creat...