“SELECT” command: The “SELECT” command is used to retrieve data in a database . Syntax for selecting values from the table is as follows: SELECT STUDENT_ID FROM STUDENT; The given query is used to display each student ID from “STUDENT” table. “AVG” function: It is the one function of aggregate function. The “AVG” function is used to compute the average value in a column. Example: The example for “AVG” function is given below: SELECT AVG(MARK_CREDIT) FROM STUDENT; The above query is used to display the average of mark credit from “STUDENT” table using “AVG” function. “GROUP BY” Clause: User can group the data using “GROUP BY” clause. This clause allows the user to group data on a specific column and then computes statistics when user preferred. Example: The example for “GROUP BY” clause is given below: SELECT CUSTOMER_NAME, SUM(AMOUNT) FROM CUSTOMERS GROUP BY CUSTOMER_NAME; The above query is used to list the customer name and the sum of amount using “GROUP BY” clause.

Question

List the location number and unit number for every condo whose square footage is equal to or less than 1,084 square feet.

Answer 1

Question

Chapter 4, Problem 14CAT

Program Plan Intro

“SELECT” command:

The “SELECT” command is used to retrieve data in a database.

Syntax for selecting values from the table is as follows:

SELECT STUDENT_ID FROM STUDENT;

The given query is used to display each student ID from “STUDENT” table.

“AVG” function:

It is the one function of aggregate function.

The “AVG” function is used to compute the average value in a column.

Example:

The example for “AVG” function is given below:

SELECT AVG(MARK_CREDIT) FROM STUDENT;

The above query is used to display the average of mark credit from “STUDENT” table using “AVG” function.

“GROUP BY” Clause:

User can group the data using “GROUP BY” clause.

This clause allows the user to group data on a specific column and then computes statistics when user preferred.

Example:

The example for “GROUP BY” clause is given below:

SELECT CUSTOMER_NAME, SUM(AMOUNT) FROM CUSTOMERS GROUP BY CUSTOMER_NAME;

The above query is used to list the customer name and the sum of amount using “GROUP BY” clause.

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Answer 2

Question

Chapter 4, Problem 14CAT

Program Plan Intro

“SELECT” command:

The “SELECT” command is used to retrieve data in a database.

Syntax for selecting values from the table is as follows:

SELECT STUDENT_ID FROM STUDENT;

The given query is used to display each student ID from “STUDENT” table.

“AVG” function:

It is the one function of aggregate function.

The “AVG” function is used to compute the average value in a column.

Example:

The example for “AVG” function is given below:

SELECT AVG(MARK_CREDIT) FROM STUDENT;

The above query is used to display the average of mark credit from “STUDENT” table using “AVG” function.

“GROUP BY” Clause:

User can group the data using “GROUP BY” clause.

This clause allows the user to group data on a specific column and then computes statistics when user preferred.

Example:

The example for “GROUP BY” clause is given below:

SELECT CUSTOMER_NAME, SUM(AMOUNT) FROM CUSTOMERS GROUP BY CUSTOMER_NAME;

The above query is used to list the customer name and the sum of amount using “GROUP BY” clause.

Expert Solution & Answer

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Answer 3

Question

Chapter 4, Problem 14CAT

Program Plan Intro

“SELECT” command:

The “SELECT” command is used to retrieve data in a database.

Syntax for selecting values from the table is as follows:

SELECT STUDENT_ID FROM STUDENT;

The given query is used to display each student ID from “STUDENT” table.

“AVG” function:

It is the one function of aggregate function.

The “AVG” function is used to compute the average value in a column.

Example:

The example for “AVG” function is given below:

SELECT AVG(MARK_CREDIT) FROM STUDENT;

The above query is used to display the average of mark credit from “STUDENT” table using “AVG” function.

“GROUP BY” Clause:

User can group the data using “GROUP BY” clause.

This clause allows the user to group data on a specific column and then computes statistics when user preferred.

Example:

The example for “GROUP BY” clause is given below:

SELECT CUSTOMER_NAME, SUM(AMOUNT) FROM CUSTOMERS GROUP BY CUSTOMER_NAME;

The above query is used to list the customer name and the sum of amount using “GROUP BY” clause.

Expert Solution & Answer

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Answer 4

Question

Chapter 4, Problem 14CAT

Program Plan Intro

“SELECT” command:

The “SELECT” command is used to retrieve data in a database.

Syntax for selecting values from the table is as follows:

SELECT STUDENT_ID FROM STUDENT;

The given query is used to display each student ID from “STUDENT” table.

“AVG” function:

It is the one function of aggregate function.

The “AVG” function is used to compute the average value in a column.

Example:

The example for “AVG” function is given below:

SELECT AVG(MARK_CREDIT) FROM STUDENT;

The above query is used to display the average of mark credit from “STUDENT” table using “AVG” function.

“GROUP BY” Clause:

User can group the data using “GROUP BY” clause.

This clause allows the user to group data on a specific column and then computes statistics when user preferred.

Example:

The example for “GROUP BY” clause is given below:

SELECT CUSTOMER_NAME, SUM(AMOUNT) FROM CUSTOMERS GROUP BY CUSTOMER_NAME;

The above query is used to list the customer name and the sum of amount using “GROUP BY” clause.

Expert Solution & Answer

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Answer 5

Chapter 4, Problem 14CAT

Program Plan Intro

“SELECT” command:

The “SELECT” command is used to retrieve data in a database.

Syntax for selecting values from the table is as follows:

SELECT STUDENT_ID FROM STUDENT;

The given query is used to display each student ID from “STUDENT” table.

“AVG” function:

It is the one function of aggregate function.

The “AVG” function is used to compute the average value in a column.

Example:

The example for “AVG” function is given below:

SELECT AVG(MARK_CREDIT) FROM STUDENT;

The above query is used to display the average of mark credit from “STUDENT” table using “AVG” function.

“GROUP BY” Clause:

User can group the data using “GROUP BY” clause.

This clause allows the user to group data on a specific column and then computes statistics when user preferred.

Example:

The example for “GROUP BY” clause is given below:

SELECT CUSTOMER_NAME, SUM(AMOUNT) FROM CUSTOMERS GROUP BY CUSTOMER_NAME;

The above query is used to list the customer name and the sum of amount using “GROUP BY” clause.

Answer 6

Chapter 4, Problem 14CAT

Program Plan Intro

“SELECT” command:

The “SELECT” command is used to retrieve data in a database.

Syntax for selecting values from the table is as follows:

SELECT STUDENT_ID FROM STUDENT;

The given query is used to display each student ID from “STUDENT” table.

“AVG” function:

It is the one function of aggregate function.

The “AVG” function is used to compute the average value in a column.

Example:

The example for “AVG” function is given below:

SELECT AVG(MARK_CREDIT) FROM STUDENT;

The above query is used to display the average of mark credit from “STUDENT” table using “AVG” function.

“GROUP BY” Clause:

User can group the data using “GROUP BY” clause.

This clause allows the user to group data on a specific column and then computes statistics when user preferred.

Example:

The example for “GROUP BY” clause is given below:

SELECT CUSTOMER_NAME, SUM(AMOUNT) FROM CUSTOMERS GROUP BY CUSTOMER_NAME;

The above query is used to list the customer name and the sum of amount using “GROUP BY” clause.

Answer 7

Chapter 4, Problem 14CAT

Program Plan Intro

“SELECT” command:

The “SELECT” command is used to retrieve data in a database.

Syntax for selecting values from the table is as follows:

SELECT STUDENT_ID FROM STUDENT;

The given query is used to display each student ID from “STUDENT” table.

“AVG” function:

It is the one function of aggregate function.

The “AVG” function is used to compute the average value in a column.

Example:

The example for “AVG” function is given below:

SELECT AVG(MARK_CREDIT) FROM STUDENT;

The above query is used to display the average of mark credit from “STUDENT” table using “AVG” function.

“GROUP BY” Clause:

User can group the data using “GROUP BY” clause.

This clause allows the user to group data on a specific column and then computes statistics when user preferred.

Example:

The example for “GROUP BY” clause is given below:

SELECT CUSTOMER_NAME, SUM(AMOUNT) FROM CUSTOMERS GROUP BY CUSTOMER_NAME;

The above query is used to list the customer name and the sum of amount using “GROUP BY” clause.

Answer 8

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Answer 19

Ch. 4 - Prob. 1RQ Ch. 4 - Prob. 2RQ Ch. 4 - Prob. 3RQ Ch. 4 - Prob. 4RQ Ch. 4 - Prob. 5RQ Ch. 4 - In which clause would you use a wildcard in a...Ch. 4 - Prob. 7RQ Ch. 4 - How do you determine whether a column contains one...Ch. 4 - Prob. 9RQ Ch. 4 - Prob. 10RQ

Solution Summary: The author describes the "SELECT" command, which retrieves data in a database. The "AVG" function computes the average value in the column.

Chapter 4 Solutions