PI
Returns the value of pi as a floating-point value.
Syntax​
PI()
Arguments​
| Arguments | Description | 
|---|
Return Type​
A Float64 data type value.
Examples​
mysql> SELECT PI();
+-------------------+
| PI()              |
+-------------------+
| 3.141592653589793 |
+-------------------+
mysql> SELECT PI()+1;
+-------------------+
| (PI() + 1)        |
+-------------------+
| 4.141592653589793 |
+-------------------+