​
Overview

SIN() is a numeric function that returns the trigonometric sine value of a specified angle in radians.

​
Syntax

The syntax of the SIN() function is as follows. 
SIN (x)
The SIN() function requires one argument: x:  A positive or a negative angle (or an expression that evaluates to an angle).

​
Examples

​
Case #1: Sine a Positive Value

The example below will use the SIN() function with a positive angle as the argument. 
SELECT SIN(5);
It will return the sine value of 5. 
+-----------------------+
| f                     |
+-----------------------+
| -0.9589242746631385   |
+-----------------------+

​
Case #2: Sine a Negative Value

The following example shows the SIN() function with a negative angle as the argument. 
SELECT SIN(-3);
The output will be as follows. 
+----------------------+
| f                    |
+----------------------+
| -0.1411200080598672  |
+----------------------+

​
Case #3: Sine a Fraction Value

The following example shows the SIN() function with a fractional value as the argument. 
SELECT SIN(5.8732);
The output will be as follows. 
+----------------------+
| f                    |
+----------------------+
| -0.3985959081271079  |
+----------------------+

​
Case #4: Sine With an Expression

The SIN() function can also include an expression, as shown in the example below: 
SELECT sin(8.5 * 2.3);
You will get the following output: 
+-----------------------+
| f                     |
+-----------------------+
| 0.6445566903363104    |
+-----------------------+

​
Case #5: Using the SIN() Function With a Table

In the following example, we will combine SIN() function with CREATE TABLE statement to obtain the sine values of a specific column.
  1. Create a new table named sineTable containing the initialValue column. Input some values with the negative and positive angles into the column.
CREATE TABLE sineTable(initialValue int);
INSERT INTO sineTable(initialValue)
VALUES (-5),(18), (0),(-27);
  1. Run the query below to get the output of a sine value:
SELECT * ,SIN(initialValue) AS sinValue FROM sineTable;
  1. The final result will have the initialValue column with the source value and the sinValue column with their calculated sine values.  
+---------------+-------------------------------+
| initialvalue  | sinValue                      |
+---------------+-------------------------------+
| -75           | 0.38778163540943045           |
| 180           | -0.8011526357338304           |
| 0             | 0                             | 
| -270          | 0.1760459464712114            |
+---------------+-------------------------------+