MySQL SUBTIME Function: Time Subtraction Operation

The SUBTIME() function in MySQL is used to subtract a time value from a given time. The function takes two arguments: the original time and the time to be subtracted.

The basic syntax of the SUBTIME() function is:

SUBTIME(time1, time2)

Where:

time1 is the original time.
time2 is the time value to be subtracted from the original time.

It's important to note that the function returns NULL if the arguments are invalid. Also, if the result goes below 0, MySQL will correctly show the negative time value.

Here's an example of how you might use it:

SELECT SUBTIME('18:30:00', '02:25:00') AS NewTime;

In this example, the function will subtract '02:25:00' from '18:30:00'. As a result, the NewTime value would be '16:05:00'.

You can also use SUBTIME() with datetime values. For example:

SELECT SUBTIME('2023-05-12 18:30:00', '1:1:1') AS NewDateTime;

In this case, the function subtracts 1 hour, 1 minute, and 1 second from the datetime '2023-05-12 18:30:00'. So, the NewDateTime value would be '2023-05-12 17:28:59'.

Also, it's important to note that SUBTIME() can handle time values over 24 hours. For example:

SELECT SUBTIME('30:00:00', '02:00:00') AS NewTime;

Here, '30:00:00' represents 30 hours. After subtracting '02:00:00' (2 hours), the result would be '28:00:00' (28 hours).

Time subtraction with MySQL SUBTIME:
- Perform time subtraction in MySQL using the SUBTIME function.
Using SUBTIME function in MySQL for time operations:
- Use the SUBTIME function in MySQL to subtract a specified time interval from a given time.
```
SELECT SUBTIME('12:30:00', '0:15:00') AS subtracted_time;
```
MySQL SUBTIME function example:
- An example of using the SUBTIME function in MySQL to subtract time.
```
SELECT SUBTIME('12:30:00', '0:15:00') AS subtracted_time;
```
How to subtract time in MySQL:
- Subtract time in MySQL by using the SUBTIME function with the time value and the desired time interval to subtract.
```
SELECT SUBTIME('12:30:00', '0:15:00') AS subtracted_time;
```
Time manipulation in MySQL: SUBTIME usage:
- Utilize the SUBTIME function for time manipulation in MySQL to perform time subtraction.
```
SELECT SUBTIME('12:30:00', '0:15:00') AS subtracted_time;
```
MySQL time subtraction with SUBTIME:
- Perform time subtraction in MySQL using the SUBTIME function.
```
SELECT SUBTIME('12:30:00', '0:15:00') AS subtracted_time;
```
Performing time calculations in MySQL using SUBTIME:
- Perform time calculations in MySQL by using the SUBTIME function to subtract a specified time interval.
```
SELECT SUBTIME('12:30:00', '0:15:00') AS subtracted_time;
```
Time arithmetic with SUBTIME in MySQL:
- Perform time arithmetic in MySQL using the SUBTIME function for subtracting time intervals.
```
SELECT SUBTIME('12:30:00', '0:15:00') AS subtracted_time;
```