Question

I am making an iPhone application in which I am storing date and time in a column now I want to sort the date and time in the order which occurs first.

How can I do this? please give me some solutions.

Answer 1

Save the NSDate as NSTimeInterval:

NSTimeInterval timeInterval = [[NSDate date] timeIntervalSince1970];

The NSTimeInterval is just a double which you can save in the a SQLite database.

With an simple SQL query you can then select the sort then:

SELECT * FROM dateTable ORDER BY myDateColumn DESC

And to get the NSDate back just:

NSDate *date = [NSDate dateWithTimeIntervalSince1970:databaseTimeInterval];