SQL provides several functions for working with numeric data. These numeric functions can be used to perform operations such as rounding numbers, finding the minimum or maximum value, and more. Here are some of the most commonly used numeric functions in SQL:

1. ROUND: This function rounds a number to a specified number of decimal places. The syntax for this function is:

ROUND(number, decimal places)

Here is an example:

SELECT ROUND(3.1415, 2);

The result of this query will be 3.14.

2. CEILING and FLOOR: These functions round a number up or down to the nearest integer, respectively. The syntax for these functions is:

CEILING(number)
FLOOR(number)

Here is an example:

SELECT CEILING(3.14);
SELECT FLOOR(3.14);

The first query will return 4 and the second query will return 3.

3. ABS: This function returns the absolute value of a number. The syntax for this function is:

ABS(number)

Here is an example:

SELECT ABS(-3.14);

The result of this query will be 3.14.

4. MIN and MAX: These functions return the minimum and maximum value of a set of numbers, respectively. The syntax for these functions is:

MIN(number1, number2, ...)
MAX(number1, number2, ...)

Here is an example:

SELECT MIN(1, 2, 3, 4);
SELECT MAX(1, 2, 3, 4);

The first query will return 1 and the second query will return 4.

In conclusion, SQL provides several functions for working with numeric data. These functions can be used to perform operations such as rounding numbers, finding the minimum or maximum value, and more. These functions are useful when working with numeric data in SQL.

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