“UNIQUE” keyword: The “UNIQUE” keyword is used to select all values in a column are different. The syntax for “UNIQUE” keyword is as follows Syntax: SELECT UNIQUE column_Name FROM table_Name; “COUNT” keyword: COUNT – This is used to count the number of rows for the particular column. Syntax: SELECT COUNT(column_Name) FROM table_Name; “DISTINCT” Keyword: The “DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows: Syntax: SELECT DISTINCT column_Name FROM table_Name;

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Answer 1

Question

Chapter 3, Problem 22E

Program Plan Intro

“UNIQUE” keyword:

The “UNIQUE” keyword is used to select all values in a column are different. The syntax for “UNIQUE” keyword is as follows

Syntax:

SELECT UNIQUE column_Name FROM table_Name;

“COUNT” keyword:

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

Syntax:

SELECT COUNT(column_Name) FROM table_Name;

“DISTINCT” Keyword:

The “DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

Syntax:

SELECT DISTINCT column_Name FROM table_Name;

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Answer 2

Question

Chapter 3, Problem 22E

Program Plan Intro

“UNIQUE” keyword:

The “UNIQUE” keyword is used to select all values in a column are different. The syntax for “UNIQUE” keyword is as follows

Syntax:

SELECT UNIQUE column_Name FROM table_Name;

“COUNT” keyword:

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

Syntax:

SELECT COUNT(column_Name) FROM table_Name;

“DISTINCT” Keyword:

The “DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

Syntax:

SELECT DISTINCT column_Name FROM table_Name;

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Answer 3

Question

Chapter 3, Problem 22E

Program Plan Intro

“UNIQUE” keyword:

The “UNIQUE” keyword is used to select all values in a column are different. The syntax for “UNIQUE” keyword is as follows

Syntax:

SELECT UNIQUE column_Name FROM table_Name;

“COUNT” keyword:

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

Syntax:

SELECT COUNT(column_Name) FROM table_Name;

“DISTINCT” Keyword:

The “DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

Syntax:

SELECT DISTINCT column_Name FROM table_Name;

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Answer 4

Question

Chapter 3, Problem 22E

Program Plan Intro

“UNIQUE” keyword:

The “UNIQUE” keyword is used to select all values in a column are different. The syntax for “UNIQUE” keyword is as follows

Syntax:

SELECT UNIQUE column_Name FROM table_Name;

“COUNT” keyword:

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

Syntax:

SELECT COUNT(column_Name) FROM table_Name;

“DISTINCT” Keyword:

The “DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

Syntax:

SELECT DISTINCT column_Name FROM table_Name;

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Answer 5

Chapter 3, Problem 22E

Program Plan Intro

“UNIQUE” keyword:

The “UNIQUE” keyword is used to select all values in a column are different. The syntax for “UNIQUE” keyword is as follows

Syntax:

SELECT UNIQUE column_Name FROM table_Name;

“COUNT” keyword:

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

Syntax:

SELECT COUNT(column_Name) FROM table_Name;

“DISTINCT” Keyword:

The “DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

Syntax:

SELECT DISTINCT column_Name FROM table_Name;

Answer 6

Chapter 3, Problem 22E

Program Plan Intro

“UNIQUE” keyword:

The “UNIQUE” keyword is used to select all values in a column are different. The syntax for “UNIQUE” keyword is as follows

Syntax:

SELECT UNIQUE column_Name FROM table_Name;

“COUNT” keyword:

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

Syntax:

SELECT COUNT(column_Name) FROM table_Name;

“DISTINCT” Keyword:

The “DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

Syntax:

SELECT DISTINCT column_Name FROM table_Name;

Answer 7

Chapter 3, Problem 22E

Program Plan Intro

“UNIQUE” keyword:

The “UNIQUE” keyword is used to select all values in a column are different. The syntax for “UNIQUE” keyword is as follows

Syntax:

SELECT UNIQUE column_Name FROM table_Name;

“COUNT” keyword:

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

Syntax:

SELECT COUNT(column_Name) FROM table_Name;

“DISTINCT” Keyword:

The “DISTINCT” keyword is used to avoid redundant data (removing duplicate values) from a column. The syntax for “DISTINCT” keyword is as follows:

Syntax:

SELECT DISTINCT column_Name FROM table_Name;

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 3 - Prob. 1PE Ch. 3 - Prob. 2PE Ch. 3 - Prob. 3PE Ch. 3 - Suppose that we have a relation marks(ID, score)...Ch. 3 - Suppose that we have a relation marks(ID, score)...Ch. 3 - The SQL like operator is case sensitive (in most...Ch. 3 - Prob. 7PE Ch. 3 - Prob. 8PE Ch. 3 - Prob. 9PE Ch. 3 - Prob. 10PE

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