SQRT(a)
SQRT(a) is an arithmetic function which calculates the square root of the expression a ( a is a number).
|
a |
Result of the SQRT(a) Function |
|---|---|
|
a>0 |
Square root of a |
|
a=0 |
0 |
|
a<0 or a is a NULL value |
NULL value |
|
a is a special NULL value |
Special NULL value |