What is data gatherer. What is it's importance? Is it only for the purpose of using OEM?
As the name suggests, it is used to gather data for the oracle performance manager, spacial index tools and etc. This is soly, used by the OEM. If you are planning to run any statistics related operation from the OEM on Windows, like oracle tuning pack, performance manager and etc, you would require to start the data gatherer on the server where your instance lives.
the way to start it is
Life is a journey, not a destination!
Start Oracle Data Gatherer
Stop Oracle Data Gatherer
Verify that Oracle Data Gatherer is running
Identify the version of Oracle Data Gatherer
For all the options type in at the prompt as follows.
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