Cause: The name, appearing in the
context of a REF or VALUE, did not resolve to an object-table alias.
Action: 1) If there is no object table
in the scope, then remove the REF or VALUE; or provide the missing object
table reference. 2) If there is an object table in the scope, but you`re not
referring to it, add the reference.

Relared Errors:
PLS-00334:
string matches table or view without an alias
PLS-00335: a
package name conflicts with an existing object
PLS-00336:
non-object-table string illegal in this context
PLS-00337:
string matches too many object table aliases
PLS-00338:
unable to resolve string as a column or row
expression
PLS-00339:
string matches object-table without a REF or VALUE
modifier
PLS-00341:
declaration of cursor `string` is incomplete or
malformed
PLS-00351: Not
logged onto database `string`
PLS-00352:
Unable to access another database `string`
PLS-00353:
`string` must name a user in the database