How can I disable Diagnostic and Tuning packs in Oracle Database 11g?
Starting with Oracle Database 11g, there is a new init.ora parameter, CONTROL_MANAGEMENT_PACK_ACCESS, that enables/disables Diagnostic and Tuning packs in the database server. This parameter can have three values: DIAGNOSTIC+TUNING (default, both packs are enabled), DIAGNOSTIC (only Diagnostic pack is enabled), NONE (both packs are disabled). In Oracle Database SE/SE1, this parameter is set to ‘NONE’ which disables all pack specific functionality. Users are then free to access AWR as it should only have non-pack data in it. In this case all pack specific views will be empty.