A very good article : http://coskan.wordpress.com/2011/02/17/plan-stability-through-upgrade-why-is-my-plan-changed-new-optimizer-parameters/
Rownum quiz
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Here’s a silly little puzzle that baffled me for a few moments until I
spotted my typing error. It starts with a small table I’d created to hold a
few rows...
Acum o zi
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