How to Use POW Function in MySQL: Syntax and Examples

In MySQL, use the POW(base, exponent) function to raise a number to the power of another. It returns the result of base raised to the exponent. For example, POW(2, 3) returns 8.

Syntax

The POW function takes two arguments: base and exponent. It calculates base raised to the power of exponent.

• base: The number you want to raise.
• exponent: The power to raise the base to.

Both arguments can be integers or decimals.

sql

POW(base, exponent)

Example

This example shows how to use POW to calculate powers of numbers in a SELECT statement.

sql

SELECT POW(2, 3) AS result1, POW(5, 2) AS result2, POW(9, 0.5) AS result3;

Output

result1 | result2 | result3
--------|---------|--------
8       | 25      | 3

Common Pitfalls

Common mistakes when using POW include:

• Using negative bases with fractional exponents, which can return NULL because the result is complex.
• Passing non-numeric values, which causes errors.
• Confusing POW with the caret symbol (^), which is a bitwise XOR in MySQL, not exponentiation.

sql

/* Wrong: Using ^ for power (bitwise XOR) */
SELECT 2 ^ 3 AS wrong_result;

/* Right: Using POW function */
SELECT POW(2, 3) AS correct_result;

Output

wrong_result
------------
1

correct_result
--------------
8

Quick Reference

Function	Description	Example	Result
POW(base, exponent)	Raises base to exponent power	POW(3, 4)	81
POWER(base, exponent)	Synonym for POW	POWER(2, 5)	32
^ operator	Bitwise XOR, NOT power	2 ^ 3	1

Key Takeaways

Use POW(base, exponent) to calculate powers in MySQL.

POW and POWER are synonyms and work the same way.

Do not use ^ for exponentiation; it is a bitwise XOR operator.

Avoid negative bases with fractional exponents to prevent NULL results.

Always pass numeric values to POW to avoid errors.