RE: looking for doc with diagrams on redo and undo for java developers

thanks. just picked up jonathans book a few weeks ago and handt read it yet... pulled it off the shelf. skimmed it. its in the first chapter with diagrams. i gave him expert one on one, but he had to read about 70 pages to really get it. thanks mark.

to the other posters: i did expalin. however, it is perfectly reasonable to want documentation and people woh have thought out the explanation in a well thought out article can have better explanations than i do.

• Original message --------------

> Ryan,
>
> I know for sure Jonathan Lewis covers this in his three-day seminar, "undo and
> redo costs". I think it may also be covered in his book, but I don't have it
> here at the office today.
>
> -Mark
>
> -----Original Message-----
> From: oracle-l-bounce_at_freelists.org
> [mailto:oracle-l-bounce_at_freelists.org]On Behalf Of
> ryan_gaffuri_at_comcast.net
> Sent: Tuesday, September 28, 2004 11:37 AM
> To: oracle-l_at_freelists.org
> Subject: looking for doc with diagrams on redo and undo for java
> developers
>
>
> Object Oriented programming is all about reuse so our java guys made a universal
> update statement that updates all columns in a table, even unchanged columns. I
> know its bad, but its a major re-write to change this. I was digging through the
> otn docs and some books and everything that leads me to this requires a
> significant amount of reading. Multiple chapters etc...
> anyone know a short article that explains undo and redo along with diagrams and
> why its bad to update unchanged columns that is easy for a non-oracle person to
> follow?
>
> checked the concepts doc, but they would probably have to read 50-70 pages to
> get the basic idea.
>
> --
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