SQRT(X)
Returns the square root of X. If X is negative, NULL
is returned.
SELECT SQRT(4);
+---------+
| SQRT(4) |
+---------+
| 2 |
+---------+
SELECT SQRT(20);
+------------------+
| SQRT(20) |
+------------------+
| 4.47213595499958 |
+------------------+
SELECT SQRT(-16);
+-----------+
| SQRT(-16) |
+-----------+
| NULL |
+-----------+
SELECT SQRT(1764);
+------------+
| SQRT(1764) |
+------------+
| 42 |
+------------+
This page is licensed: GPLv2, originally from fill_help_tables.sql