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by Craig Shallahamer Get the book here |
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Craig Shallahamer's Blog
The text below is an except from the book, Oracle Performance Firefighting, written by Craig Shallahamer of OraPub, Inc. Figures and tables are not included on this page, only their reference. To order the book in either print or PDF form, click here. ©2009, 2010 by Craig Shallahamer. This is copyrighted material. Please—Out of respect for those involved in the creation of the book and also for their familes, we ask you to respect the copyright both in intent and deed. Thank you. ------------------------------- 2 The student registration system that needed bind variables was based on version of Oracle that did not support this transformation option. As a result, the SQL had to be changed. 3 Mark Gury, of MGA based in Australia, spends countless hours optimizing PeopleSoft systems. He has personally told me on nurmous occasions that using the force option has returned a different row set. The lesson here is to always thoroughy test when using cursor sharing before you make the change in production. 4 Remember that a shared pool flush is not a true flush. Pinned cursors and objects (think packages) will not be flushed. Please—Out of respect for those involved in the creation of the book and also for their familes, we ask you to respect the copyright both in intent and deed. Thank you. |
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