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MySQL | SQRT method

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schedule Jul 1, 2022
Last updated
local_offer MySQL
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tocTable of Contents
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MySQL's SQRT(~) method returns the square root of a nonnegative number.

Parameters

1. X | number

A nonnegative number to return the square root for.

Examples

Basic usage

To return the square root for a positive number:

SELECT SQRT(20);
+------------------+
| SQRT(20) |
+------------------+
| 4.47213595499958 |
+------------------+

Negative input

To return the square root for -5:

SELECT SQRT(-5);
+----------+
| SQRT(-5) |
+----------+
| NULL |
+----------+

We return NULL if we try to return the square root for a negative number.

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Published by Arthur Yanagisawa
Edited by 0 others
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