Round a number to a specific number of decimal places in Oracle, Access and SQL Server: In Oracle, Access and SQL server, user can round a number to a specific number of decimal places by using “ROUND” function. “ROUND” function: This function is used to rounds a number to a specified number of decimal places. This function contains more than one argument. Syntax for “ROUND” function: ROUND(number, DecimalPlaces) From the given syntax, the argument “number” defines the value to be rounded and the argument “DecimalPlaces” represents the number of decimal places to which to round the result. Consider an example, “ROUND(46.78, 0)” will give the result as “47”...

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Explian thiS C program #include<stdio.h> int countSetBits(int n) { int count = 0; while (n) { count += n & 1; n >>= 1; } return count;} int main() { int num; printf("Enter a number: "); scanf("%d", &num); printf("Output: %d units\n", countSetBits(num)); return 0;}

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Chapter 8, Problem 2RQ

Explanation of Solution

Round a number to a specific number of decimal places in Oracle, Access and SQL Server:

In Oracle, Access and SQL server, user can round a number to a specific number of decimal places by using “ROUND” function.

“ROUND” function:

This function is used to rounds a number to a specified number of decimal places.

This function contains more than one argument.

Syntax for “ROUND” function:
ROUND(number, DecimalPlaces)

From the given syntax, the argument “number” defines the value to be rounded and the argument “DecimalPlaces” represents the number of decimal places to which to round the result.

Consider an example, “ROUND(46.78, 0)” will give the result as “47”...

Explanation of Solution

Remove each value to the right of the decimal places using Oracle, Access and Server:

For Oracle and SQL Server:

For Oracle and SQL server, user can use the “FLOOR” function to remove each number to the right of decimal point.

“FLOOR” function:

This function is used to truncate everything to the right of decimal value.

Syntax for “FLOOR” function:
FLOOR(value)

From the given syntax, the “value” represents numeric value.

Example of “FLOOR” function:

The example for “FLOOR” function in query concept is given below:

SELECT FLOOR(86.32) AS COMPUTED_VALUE;

The above query is used to eliminate everything to the right of decimal value using “FLOOR” function.

The computed value is represented by “COMPUTED_VALUE” using “AS” operator.

When the query is executed, the following output will be displayed...

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