12535, 00000, "TNS:operation timed out"
// *Cause: The requested operation could not be completed within the time out
// period.
// *Action: Look at the documentation on the secondary errors for possible
// remedy. See SQLNET.LOG to find secondary error if not provided explicitly.
// Turn on tracing to gather more information.

04052, 00000, "error occurred when looking up remote object %s%s%s%s%s"
// *Cause:  An error has occurred when trying to look up a remote object.
// *Action: Fix the error.  Make sure the remote database system has run
//          KGLR.SQL to create necessary views used for querying/looking up
//          objects stored in the database.

00604, 00000, "error occurred at recursive SQL level %s"
// *Cause:  An error occurred while processing a recursive SQL statement
//         (a statement applying to internal dictionary tables).
// *Action: If the situation described in the next error on the stack
//         can be corrected, do so; otherwise contact Oracle Support.