Aggregate Functions: SQL has some built-in functions and they are called as aggregate functions. SQL contains five built-in functions. They are: SUM – This function is used to add values from the particular column. Syntax: SELECT SUM(column_Name) FROM table_Name; COUNT – This is used to count the number of rows for the particular column. Syntax: SELECT COUNT(column_Name) FROM table_Name; MAX – This function is used to get the maximum value from the column. Syntax: SELECT MAX(column_Name) FROM table_Name; MIN – This function is used to get the minimum value from the column. Syntax: SELECT MIN(column_Name) FROM table_Name; AVG – This function is used to get the average of all the values from the column. Syntax: SELECT AVG(column_Name) FROM table_Name;

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Alphabetic Telephone Number TranslatorMany companies use telephone numbers like 555-GET-FOOD so the number is easier for their customers to remember. On a standard telephone, the alphabetic letters are mapped to numbers in the following fashion: A, B, and C = 2 D, E, and F = 3 G, H, and I = 4 J, K, and L = 5 M, N, and O = 6 P, Q, R, and S = 7 T, U, and V = 8 W, X, Y, and Z = 9 Write a program that asks the user to enter a 10-character telephone number in the format XXX-XXX-XXXX. The application should display the telephone number with any alphabetic characters that appeared in the original translated to their numeric equivalent. For example, if the user enters 555-GET-FOOD, the application should display 555-438-3663.

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Question

Chapter 7, Problem 81P

Program Plan Intro

Aggregate Functions:

SQL has some built-in functions and they are called as aggregate functions.

SQL contains five built-in functions. They are:

SUM – This function is used to add values from the particular column.

Syntax: SELECT SUM(column_Name) FROM table_Name;

COUNT – This is used to count the number of rows for the particular column.

Syntax: SELECT COUNT(column_Name) FROM table_Name;

MAX – This function is used to get the maximum value from the column.

Syntax: SELECT MAX(column_Name) FROM table_Name;

MIN – This function is used to get the minimum value from the column.

Syntax: SELECT MIN(column_Name) FROM table_Name;

AVG – This function is used to get the average of all the values from the column.

Syntax: SELECT AVG(column_Name) FROM table_Name;

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Alphabetic Telephone Number TranslatorMany companies use telephone numbers like 555-GET-FOOD so the number is easier for their customers to remember. On a standard telephone, the alphabetic letters are mapped to numbers in the following fashion: A, B, and C = 2 D, E, and F = 3 G, H, and I = 4 J, K, and L = 5 M, N, and O = 6 P, Q, R, and S = 7 T, U, and V = 8 W, X, Y, and Z = 9 Write a program that asks the user to enter a 10-character telephone number in the format XXX-XXX-XXXX. The application should display the telephone number with any alphabetic characters that appeared in the original translated to their numeric equivalent. For example, if the user enters 555-GET-FOOD, the application should display 555-438-3663.

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7. Character AnalysisIf you have downloaded the source code you will find a file named text.txt in the Chapter 08 folder. Write a program that reads the file’s contents and determines the following: The number of uppercase letters in the file The number of lowercase letters in the file The number of digits in the file The number of whitespace characters in the file