Histograms

From: Michael Calisi <oracle455_at_gmail.com>
Date: Thu, 27 Aug 2015 16:24:29 -0400
Message-ID: <CAJkYCMEj-BYaYGMx5zVbBoh6KDR0Uy59x+n5rTkTuzbQvPEPFA_at_mail.gmail.com>

I know how to check weather or not my tables are histogramed dba_tab_col_statistics, but my questions.

1. Do you need to set a parameter to enable histogram?
2. checking dba_tab_col_statistics the col histogram shows none, height balance-frequency. How is that determined?

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Received on Thu Aug 27 2015 - 22:24:29 CEST