RE: looking for doc with diagrams on redo and undo for java developers
- From: "Bobak, Mark" <Mark.Bobak@xxxxxxxxxxxxxxx>
- To: <ryan_gaffuri@xxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 28 Sep 2004 11:47:43 -0400
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@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of
ryan_gaffuri@xxxxxxxxxxx
Sent: Tuesday, September 28, 2004 11:37 AM
To: oracle-l@xxxxxxxxxxxxx
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?=20
checked the concepts doc, but they would probably have to read 50-70 =
pages to get the basic idea.=20
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