Howard, Alert levels are set under 'Metric and Policy settings'. Details of the repository views are in the 'Enterprise Manager Extensibility for Windows or UNIX' guide. Not sure why you'd want to modify the data on tablespace sizes;-) Regards David Lord 2009/6/11 Howard Latham <howard.latham@xxxxxxxxx>: > I know (at least I think I do) that it is possible to access and modify data > in OEM > tables - I am thinking of perticularly the tables containing TAblespace > sizes and alert levels > I just can't find the reference materiel - any ideas? > > -- > Howard A. Latham > > > -- //www.freelists.org/webpage/oracle-l