Archives of the TeradataForum
Message Posted: Sat, 19 Feb 2005 @ 11:55:14 GMT
| Subj: || || Re: Deleting the partial rows |
| From: || || John Hall |
The point that you're missing: the Teradata does not keep track of when data is inserted/updated. If you need something like a purge cycle,
you need to provide a timestamp in the design of your tables and then populate that column with the date/time of when each row was loaded.
If your design doesn't include that information, then you're stuck. All you can do is compare your current table against an old copy of the
table to determine what has changed.
If you can't compare against an old copy, then you have an impossible task. You might as well go and enjoy the rest of the weekend.