My guess is that reloads has gone negative. Which version of Oracle? Jared On Mon, 14 Mar 2005 14:47:05 -0600, James Howerton <jhowerton@xxxxxxxxx> wrote: > DBA's, > > Has anyone seen library cache hit ratio > 100% ??? This is a very busy > production database, it is usually < 97 % ( I don't tune by hit ratios > I'm just curious). > > SQL> select SUM(PINS)/(SUM(PINS)+SUM(RELOADS))*100 > from v$librarycache; > > Library Hit Ratio > -------------------------- > 100.009799 > > 1 row selected. > > TIA > ...JIM... > -- > //www.freelists.org/webpage/oracle-l > -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist -- //www.freelists.org/webpage/oracle-l