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- From: buda@star.enet.dec.com (Mark A. Buda)
- Subject: Re: deleteing an rms block
- Message-ID: <1992Nov18.160542.15675@nntpd.lkg.dec.com>
- Sender: usenet@nntpd.lkg.dec.com (USENET News System)
- Organization: Digital Equipment Corporation
- Date: Wed, 18 Nov 1992 16:02:50 GMT
- Lines: 24
-
-
- In article <1992Nov17.231932.7615@mnemosyne.cs.du.edu>, ncuster@nyx.cs.du.edu (Nate Custer) writes...
- >
- >If i create a random access file with rms in my account (i'm the owner)
- >and someone wants to delete one of the records in that file, can they
- >do that?
-
- Depending on the orginazation (Seq/Rel/Idx) you do it with different techniques.
- For IDX/REL, you would use the $DELETE system service. For sequential files
- you would use a couple different methods.
-
- >assuming w:rw protection is set? when you delete the block,
- >aren't you just telling rms it isn't there anymore? you're not actually
- >cleaning up the file right?
-
- You have told RMS to 'forget' about the data that was accessable. The data
- may still be in the file, but not accessable without block access. In time
- you may overwrite it, at which time it is truly gone.
-
- - mark
-
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