Support for Analytic Workspace Caching

In Oracle11g, the AW command has been modified to support caching which removes the time needed to open an analytic workspace for repeated queries

AW command has new PURGE CACHE keyword.
AW ATTACH command now uses the cached version of an analytic workspace if one is available rather than opening a current version.
AW DETACH command has a new CACHE keyword that specifies that an analytic workspace that is being detached is considered a candidate for caching.
AW TRUNCATE command has been improved