What is the purpose of the from_unixtime function in MySQL?

FROM_UNIXTIME() is a MySQL function that is used to convert Unix timestamps into date and time formats. It takes a parameter, the Unix timestamp, and returns a corresponding date and time value.

Its specific functions are as follows:

1. Convert a Unix timestamp to a date.
2. Perform date and time related queries and analysis in MySQL. By converting Unix timestamps to datetime format, it is easy to perform calculations, comparisons, and filtering based on date and time, such as querying records within a specific time range or sorting by time.
3. Converts a timestamp into a readable date and time.

In conclusion, the FROM_UNIXTIME() function can convert Unix timestamps into a readable date and time format, making date and time operations in MySQL more convenient and intuitive.