hi guys,
got my understand from the official guide using dbua to upgrade an database .
and Differences between GATHER STALE and GATHER AUTO (Doc ID 228186.1)
i have my performance concern regarding performing the steps prior to the upgrade.
Will it affect the performance of my database after the upgrade?
I am thinking in the line, that my database was working fine with my previous statistic.
correct me if i am wrong, this gathering of the statistic is is database wide right. And this include the dictionary also.
Is there a need for me to export all my tables statistic just in case i need to re -import them back ?