SQL – MySQL ABS() Function
The MySQL ABS() function returns the absolute value of a number.
The MySQL ACOS() function returns the arc cosine of a number. The specified number must be between -1 and 1, or NULL will be returned.
The MySQL ASIN() function returns the arc sine of a number. The specified number must be between -1 and 1, or NULL will be returned.
The MySQL ATAN() function returns the arc tangent of one or two numbers.
The MySQL AVG() function returns the average value of an expression (NULL values are ignored).
The MySQL CEIL() function returns the smallest integer value that is bigger than or equal to a number.
The MySQL CEILING() function returns the smallest integer value that is bigger than or equal to a number.
The MySQL COUNT() function returns the number of records returned by a select query. NULL values are not counted.
The MySQL EXP() function returns the natural logarithm e (2.718281…) raised to the power of the specified number.
The MySQL FLOOR() function returns the largest integer value that is smaller than or equal to a number.
The MySQL GREATEST() function returns the greatest value of the list of arguments.
The MySQL LEAST() function returns the smallest value of the list of arguments.
The MySQL LN() function returns the natural logarithm of a number (greater than 0).
The MySQL LOG() function returns the natural logarithm of a specified number, or the logarithm of the number to the specified base.
The MySQL LOG2() function returns the natural logarithm of a number greater than 0 to base 2.