Suppose you have 2 different datetime values t1 and t2.
If you subtract them e.g. t2 - t1, you get the time difference in seconds. Actually it seems to be the FLOOR() of the difference i.e.
- anything less than 1 second returns 0
- anything less than 2 seconds, but greater to or equal to 1 second, returns 1
- etc.
My understanding is that as an 8-byte type, DateTime values are stored with considerable precision, of the order of about 10 milliseconds (?) Is there any way to calculate differences with more precision?
I understand SECONDS() can be used to get more precision, but what I'm dealing with are DateTime values stored in tables.
Regards. Al
"Violence is the last refuge of the incompetent." -- Isaac Asimov
"Never let your sense of morals prevent you from doing what is right." -- Isaac Asimov
Neither a despot, nor a doormat, be
Every app wants to be a database app when it grows up
