How can I store the current timestamp in SQLite as ticks?

Question

I have a SQLite database where I store the dates as ticks. I am not using the default ISO8601 format. Let\'s say I have a table defined as follows:

CREATE TA         


        

Answer 1

After further study of the SQLite documentation and other information found on date number conversions, I have come up with the following formula, which appears to produce correct results:

INSERT INTO TestDate(LastModifiedTime)
    VALUES(CAST((((JulianDay('now', 'localtime') - 2440587.5)*86400.0) + 62135596800) * 10000000 AS BIGINT))

Seems like a painful way to produce something that I would expect to be available as a built-in datetime format, especially that the database supports the storing of datetime values in ticks. Hopefully, this becomes useful for others too.

Update:

The above formula is not perfect when it comes to daylight savings. See section Caveats And Bugs in SQLite docs regarding local time calculation.