|
To clear up the confusion, WRKDBF will "undelete" any deleted record regardless of the type of file or access method. It works like a champ. William K. Reger Senior Project Manager Levitz Furniture Corporation Phone: (561) 994-5114 E-mail: breger@levitz.com <mailto:breger@levitz.com> -----Original Message----- From: Peter Dow [mailto:pcdow@yahoo.com] Sent: Tuesday, March 28, 2000 9:03 PM To: MIDRANGE-L@midrange.com Subject: Re: Re[2]: Logical Files vs. Physical Keys Hi Jon, Are you saying that it is not possible to un-delete a record from a keyed physical? And if I understand your item 2, I would think the re-use delete records option would be more important than whether or not the physical file is keyed, since you can access a keyed physical in arrival sequence. Peter Dow Dow Software Services, Inc. 909 425-0194 voice 909 425-0196 fax ----- Original Message ----- From: Jon Erickson <jerickson@800.com> To: <MIDRANGE-L@midrange.com> Sent: Tuesday, March 28, 2000 9:22 AM Subject: RE: Re[2]: Logical Files vs. Physical Keys > I'm not sure if this point has been covered, but,.. > 1. You can un-delete records from an unkeyed physical. > 2. There may be requirements for arrival sequence, (which of course could be > date/time stamp sequence). > > Just my .02...... > > Regards, > Jon A. Erickson > Sr. Programmer Analyst > 800.COM Inc. > 1516 NW Thurman St > Portland, OR 97209-2517 > > Direct: 503.944.3613 > Fax: 503.944.3690 > Web: http://800.com > > > -----Original Message----- > From: eric.delong@pmsi-services.com > [mailto:eric.delong@pmsi-services.com] > Sent: Tuesday, March 28, 2000 8:57 AM > To: MIDRANGE-L@midrange.com > Subject: Re[2]: Logical Files vs. Physical Keys > > > > Sorry, but I can see no advantages to unkeyed physical files. I see > no additional flexibility, I have heard no argument that compels me > to believe that unkeyed physicals are better. You've stated that > nonkeyed physicals are "arguably better" without arguing your > point. Just saying it is so is not very convincing :) > > eric.delong@pmsi-services.com > > > ______________________________ Reply Separator > _________________________________ > Subject: RE: Logical Files vs. Physical Keys > Author: <MIDRANGE-L@midrange.com> at INET_WACO > Date: 3/24/00 10:55 PM > > > Chris, > I can see why you feel this way if you work in an environment where people > who don't know what they are doing remove members from LFs. You might want > to limit their authority. I'll stick to the statement that nonkeyed PFs > are > arguably better than keyed PFs because of flexibility. If you reserve one > LF > for all updates as part of your record locking strategy, this LF can be the > one with the UNIQUE keyword. On this issue, consistency is probably > essential no matter what strategy you use (in spite of your signature > quote). > --Chapin Kaynor > > > > > Date: Fri, 24 Mar 2000 07:47:37 -0800 > > From: Chris Bipes <rpg@cross-check.com> > > Subject: RE: Logical Files vs. Physical Keys > > > > Yes you can use unique keyed logicals to force your physical unique, that > > is > > until the logical gets its data member removed, thus no index maintained, > > and some batch program updates the physical. Now the logical member > cannot > > be added back because of duplicate unique keys. OOPS! some green program > > just caused you a big headache in scrubbing the data to remove the > > duplicates or re-assign the unique keys. Gee what aux files have the key > > > you need to scrub and which record goes to which? > > > > Ok that's a worst case scenario but can be prevented by putting the > unique > > key directly on the physical. I have had the index of a physical get > > corrupted during a power failure and the ups blowing a fuse. It was real > > > easy to recapture ALL the data to a new, freshly compiled, physical with > a > > simple CPYF FROMRCD(1). JMHO and bad experience, it is better to put the > > > lowest level unique key on the physical for forcing the data to remain > > unique always. > > > > Christopher K. Bipes mailto:ChrisB@Cross-Check.com > > Sr. Programmer/Analyst mailto:Chris_Bipes@Yahoo.com > > CrossCheck, Inc. http://www.cross-check.com > > 6119 State Farm Drive Phone: 707 586-0551 x 1102 > > Rohnert Park CA 94928 Fax: 707 586-1884 > > > > If consistency is the hobgoblin of little minds, only geniuses work here. > > > Karen Herbelin - Readers Digest 3/2000 > > > > > > - -----Original Message----- > > From: Kaynor@aol.com [mailto:Kaynor@aol.com] > > Sent: Thursday, March 23, 2000 7:46 PM > > To: MIDRANGE-L@midrange.com > > Subject: Logical Files vs. Physical Keys > > > > > > Chris, > > The reasons you give for keying the physical can be achieved by using the > > > UNIQUE keyword on a logical. Keeping your physicals unkeyed is arguably > > better because of the flexibility it provides. > > - --Chapin Kaynor > > Vermont > > > +--- > | This is the Midrange System Mailing List! > | To submit a new message, send your mail to MIDRANGE-L@midrange.com. > | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. > | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. > > | Questions should be directed to the list owner/operator: > david@midrange.com > +--- > > > > +--- > | This is the Midrange System Mailing List! > | To submit a new message, send your mail to MIDRANGE-L@midrange.com. > | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. > | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. > | Questions should be directed to the list owner/operator: > david@midrange.com > +--- > +--- > | This is the Midrange System Mailing List! > | To submit a new message, send your mail to MIDRANGE-L@midrange.com. > | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. > | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. > | Questions should be directed to the list owner/operator: david@midrange.com > +--- __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com +--- | This is the Midrange System Mailing List! | To submit a new message, send your mail to MIDRANGE-L@midrange.com. | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +--- +--- | This is the Midrange System Mailing List! | To submit a new message, send your mail to MIDRANGE-L@midrange.com. | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com. | To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com. | Questions should be directed to the list owner/operator: david@midrange.com +---
As an Amazon Associate we earn from qualifying purchases.
This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].
Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.