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Also, Oracle writes an atomic image to the redo log buffers (small before
and after image for a specific row). So when you have LGWR writing from the
redo buffer you get more information in each write. That is why commits are
fast, it writes less information to the disk. One block can record several
transactions. In the rollback however, it copies the full blocks as they
appear before any changes.
Bill
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William Dangren
Navis Enterprises
407.348.6401
800.219.0207
Received on Thu Aug 05 1999 - 11:45:39 CDT