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- Newsgroups: comp.databases.informix
- Path: sparky!uunet!metter!chris
- From: chris@metter.fmpmis.metter.com (Chris Mathes)
- Subject: Re: tracking data changes (a request for advice/information)
- Message-ID: <1992Nov18.145824.19139@metter.fmpmis.metter.com>
- Organization: Metters Industries, Inc.
- References: <1ec39eINNbci@emory.mathcs.emory.edu>
- Date: Wed, 18 Nov 1992 14:58:24 GMT
- Lines: 37
-
- jgordon@ssf-sys.DHL.COM (Jim Gordon) writes:
- >[I wrote:]
- >>
- >> I need the ability to track any changes to a large OnLine database, to the
- >> table/row/column level*, without having to constantly scan all of the tables,
- >> and without building any special abilities into the applications doing the
- >> adding/deleteing/updating.
- >>[...]
- >> The most obvious solution I can think of is having transaction logging turned
- >> on, and monitoring the logical log. I guess my questions are:
- >
- >I can't comment on the Online Log idea but another solution would be
- >to wait for Online 5.01 and use the Triggers to write records to log
- >files after every insert/update/delete on the tables and columns you
- >need to monitor.
-
- Ok, but how do the triggers work conceptually? Can you give me a general
- example of how they are set up, and what they do?
-
- >Also you run the risks of bugs in the Trigger system. Against this
- >Informix have given themselves considerable extra time to get Triggers
- >reasonably clean. They were supposed to be in 5.0 but at release time
- >were not stable enough so they left them out.
-
- The sales rep says no 5.01 in sight. Does anyone out there (maybe someone
- from INFORMIX) have even a wild guess of when we should start looking
- for 5.01? Years? A few months (hope, hope)?
-
- >Cheers - Jim
-
- Thanks Jim.
-
- -Chris
- --
- Chris Mathes, Metters Industries, Inc. UUCP: {..!}uunet!metter!chris
- Tel:(703)418-0323 INET: chris@metter.fmpmis.metter.com
- "The Tao of Programming flows far away and returns on the wind of morning."-TToP
-