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- From: cs_mj@gsbacd.uchicago.edu (Mark Jaeger)
- Subject: <None>
- Message-ID: <1992Aug14.182927.1@gsbacd.uchicago.edu>
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- Sender: news@uchinews.uchicago.edu (News System)
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- References: <BszJIK.Fyq@world.std.com>
- Date: Sat, 15 Aug 1992 00:29:27 GMT
-
- In article <BszJIK.Fyq@world.std.com>, jaa@world.std.com (Jerry A Abramson)
- writes:
- > We are currently evaluating moving from Ingres 6.2 (part of the Open Dekstop
- > 1.0 and 1.1 product) to Ingres 6.4. There are numerous new features, bug fixes
- > in 6.4 that we would like to take advantage of. Before we begin the
- > transition, has any one out there already made the transition, and if so, any
- > input would be greatly appreciated.
-
- We're using INGRES 6.4/01 under VMS 5.5, but I think my comments are
- still applicable. INGRES 6.4 is the best version to date, and I'm just
- talking about the base product--server and basic front end tools, all
- enhancements and new features aside. The product has gotten steadily
- more robust. We had nightmares working with 6.2; in fact, a planned
- product rollout had to be delayed a year because of its instability.
- But 6.4 is much better. Our move from 6.3/04 to 6.4/01 has been the
- smoothest upgrade to date.
-
- > Additionally, we currently have some 6.2 Ingres code, I would assume we need
- > to recompile with 6.4 libraries. If anyone has experienced any problems with
- > the new libraries or the 6.4 ESQLC preprocessor, input would be greatly
- > appreciated.
-
- My guess is you'll have to recompile, or, even if you don't, it would be
- a good idea. My guess is also that the ESQL/C preprocessor hasn't
- changed much, except to support the syntax for new features. The
- preprocessor has been one of the less buggy pieces.
-
- > One last question, does Ingres support database rules (more than table-only
- > integrity rules). We are trying to embed the database rules within the db,
- > not within the applications only.
-
- Yes, but it's a separate product, part of the Knowledge Manager. I
- think the price is 30% of base, but check with your salesman.
-
- You can define as many rules on a table as you like. You can ask that
- each rule be triggered on insert, update, or delete (but not select).
- For update, you can specify particular columns only, if you choose.
-
- When a rule is triggered by a DML, it causes the server to execute an
- SQL database procedures. You can pass in arguments, including any or
- all of the old and new data, as appropriate. DML changes within the
- triggered procedures will trigger new rules, if applicable. You can set
- the depth to which they will cascade.
-
- --Mark Jaeger internet: cs_mj@gsbvax.uchicago.edu
- Graduate School of Business yellnet: (312) 702-0328
- University of Chicago faxnet: (312) 702-0233
- Disclaimer: My opinions are my own and not those of my employer.
- Ich bin ein Virus. Mach' mit und kopiere mich in Deine .signature.
-
-