How to find time difference between two rows in sql

1. How to check time difference in SQL?
2. How can I find the difference between two rows in SQL?
3. How to compare two time in SQL?

How to check time difference in SQL?

The TIMEDIFF() function returns the difference between two time/datetime expressions. Note: time1 and time2 should be in the same format, and the calculation is time1 - time2.

How can I find the difference between two rows in SQL?

To calculate a difference, you need a pair of records; those two records are “the current record” and “the previous year's record”. You obtain this record using the LAG() window function. This function allows you to obtain data from the previous record (based on an order criterion, which here is “ ORDER BY year ”).

How to compare two time in SQL?

Using GETDATE() to compare with current date and time

The GETDATE() function in SQL can also be used to compare multiple dates.