Oracle Scratchpad

June 1, 2011

audsid

Filed under: audit,Oracle,Troubleshooting,Upgrades — Jonathan Lewis @ 5:42 pm BST Jun 1,2011

Here’s an example of how the passing of time can allow a problem to creep up on you.

A recent client had a pair of logon/logoff database triggers to capture some information that wasn’t available in the normal audit trail, and they had been using these triggers successfully for many years, but one day they realised that the amount of redo generated per hour had become rather large, and had actually been quite bad and getting worse over the last few months for no apparent reason. (You’ve heard this one before … “honest, guv, nothing has changed”).
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