SELECT statement: It is used to retrieve information from the table or database . The syntax for the “SELECT” statement is given below: Syntax: SELECT * FROM table_Name; MIN function: • It is one of the aggregate functions. This function is used to get the minimum value from the column. • Syntax: SELECT MIN(column_Name) FROM table_Name; MAX function: • It is one of the aggregate functions. This function is used to get the maximum value from the column. • Syntax: SELECT MAX(column_Name) FROM table_Name; “GROUP BY” Clause: The “GROUP BY” clause is used to group the result of a “SELECT” statement done on a table where the tuple values are similar for more than one column Syntax: SELECT expression1, expression2, expression_n, aggregate_function (expression) FROM table_name WHERE conditions GROUP BY expression1, expression2, expression_n;

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I would like to know about the following concepts: 1. defragmentation 2. disk management 3. hardware RAID

Answer 1

Question

Chapter 8, Problem 67P

Program Plan Intro

SELECT statement:

It is used to retrieve information from the table or database. The syntax for the “SELECT” statement is given below:

Syntax:

SELECT * FROM table_Name;

MIN function:

• It is one of the aggregate functions. This function is used to get the minimum value from the column.

• Syntax: SELECT MIN(column_Name) FROM table_Name;

MAX function:

• It is one of the aggregate functions. This function is used to get the maximum value from the column.

• Syntax: SELECT MAX(column_Name) FROM table_Name;

“GROUP BY” Clause:

The “GROUP BY” clause is used to group the result of a “SELECT” statement done on a table where the tuple values are similar for more than one column

Syntax:

SELECT expression1, expression2, expression_n, aggregate_function (expression) FROM table_name WHERE conditions GROUP BY expression1, expression2, expression_n;

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I would like to know about the following concepts: 1. defragmentation 2. disk management 3. hardware RAID

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