Cause: You have a reference to a table
or view name without an alias.
Action: Replace the reference with a
reference to an object-table alias.

Relared Errors:
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
PLS-00354:
username must be a simple identifier