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 18E

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 company(company_name varchar2(50) primary key, city varchar2(50));

Explanation:

The above q...

Explanation of Solution

c.

Query:

create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));

Explanation of Solution

d.

Query:

create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name));

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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Answer 2

Question

Chapter 3, Problem 18E

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 company(company_name varchar2(50) primary key, city varchar2(50));

Explanation:

The above q...

Explanation of Solution

c.

Query:

create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));

Explanation of Solution

d.

Query:

create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name));

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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Answer 3

Question

Chapter 3, Problem 18E

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 company(company_name varchar2(50) primary key, city varchar2(50));

Explanation:

The above q...

Explanation of Solution

c.

Query:

create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));

Explanation of Solution

d.

Query:

create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name));

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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Answer 4

Question

Chapter 3, Problem 18E

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 company(company_name varchar2(50) primary key, city varchar2(50));

Explanation:

The above q...

Explanation of Solution

c.

Query:

create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));

Explanation of Solution

d.

Query:

create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name));

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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Answer 5

Chapter 3, Problem 18E

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 company(company_name varchar2(50) primary key, city varchar2(50));

Explanation:

The above q...

Explanation of Solution

c.

Query:

create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));

Explanation of Solution

d.

Query:

create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name));

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 18E

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 18E

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 company(company_name varchar2(50) primary key, city varchar2(50));

Explanation:

The above q...

Answer 9

Explanation of Solution

b.

Query:

create table company(company_name varchar2(50) primary key, city varchar2(50));

Explanation:

The above q...

Answer 10

Explanation of Solution

c.

Query:

create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));

Answer 11

Explanation of Solution

c.

Query:

create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));

Answer 12

Explanation of Solution

d.

Query:

create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name));

Explanation:

...

Answer 13

Explanation of Solution

d.

Query:

create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name));

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

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Answer 18

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Answer 19

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Explanation of Solution

b. Query: create table company(company_name varchar2(50) primary key, city varchar2(50)); Explanation: The above q...

Explanation of Solution

c. Query: create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));

Explanation of Solution

d. Query: create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name)); 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...

Want to see the full answer?

Chapter 3 Solutions

b.

Query:

create table company(company_name varchar2(50) primary key, city varchar2(50));

Explanation:

The above q...

c.

Query:

create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));

d.

Query:

create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name));

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...