Archives of the TeradataForum
Message Posted: Fri, 07 Jun 2002 @ 22:49:43 GMT
Subj: | | Re: Average Point in Time? |
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From: | | Cornelius Meade |
In my view, the thing to do would be to convert the time component time information into consistent units (seconds would be the obvious
choice if you require that degree of precision otherwise minutes might be enough and you could simply ignore the seconds). This would be
somewhat similar to your first approach. With all of the time information converted into consistent units, then you can average then as you
would any set of numbers. The resultant average integer seconds or minutes value can then be converted back into a time value of the
desired precision by reversing the transformation applied at the outset...
For example:
minutes since seconds since
midnight midnight
---------------------- -------------
2002-06-01 00:06:14 6 374
2002-06-01 00:16:09 16 969
2002-06-02 00:05:40 5 340
2002-06-03 00:05:38 5 338
2002-06-04 00:06:04 6 364
2002-06-05 00:05:34 5 334
2002-06-06 00:05:36 5 336
2002-06-07 02:58:37 178 10717
AVG 27 1721
00:27 00:28:41
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