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Read-write model

From: Karsten Wutzke <kwutzke-blahblah_at_emporis.com>
Date: Thu, 01 Apr 2004 20:13:10 +0200
Message-ID: <c4hm3o$f6t$05$1@news.t-online.com>


Hello all!

I have an important question about scheduling and the underlying read-write model:

Is it right, that the read-write model dictates, that there are no redundant read or write operations on the same database object per transaction, or better, only one read or write on a specific database object per transaction???

TA1 = r(x) w(y) r(x) w(x) -> the 2nd r(x) would be invalid

Thanks in advance!

Karsten Wutzke Received on Thu Apr 01 2004 - 12:13:10 CST

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