how to save and retrieve date+time into sqlite3 database?
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10-07-2019 - |
Question
i want to save current date+time into database and also want to retrieve it. i know that in objective-C we cannot save date+time directly. i have double as a field into database and currently I'm saving date by converting it into double.
here is the method for converting date into double-
currentDate=[NSDate date];
startDate=(double)[currentDate timeIntervalSince1970];
now how do i retrieve date back from that double value? or is there another way to save dates in iPhone SDK.
Solution
NSDate *dateFromDouble(double interval) {
return [NSDate dateWithTimeIntervalSince1970: interval];
}
OTHER TIPS
Another alternative is to convert the date to ISO 8601 and save it as TEXT; this can be done using -description and -initWithString:. It will make the date slightly larger in the database; but it'll also be a lot more readable for debugging purposes.
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