SQRT(-16); : SQRT « Math Numeric Functions « MySQL Tutorial






  1. MySQL Tutorial
  2. Math Numeric Functions
  3. SQRT
mysql>
mysql> SELECT SQRT(-16);
+-----------+
| SQRT(-16) |
+-----------+
|      NULL |
+-----------+
1 row in set (0.00 sec)

mysql>








21.34.SQRT
21.34.1.SQRT(X) returns the square root of a non-negative number X.
21.34.2.SQRT(-16);