Invalid Objects

[M.Shakeel Azeem]

Sometime i faced the error
ORA-20003 - The object that you specified is invalid and cannot be described.
How can we determine which objects become invalid
Do anybody have a script to determine all invalid objects (including procedures,functions,packages,views,synonyms)
can we recomplile all of these objects in a single run?
thanx in advance

[ahmadbilal]

select * from all_objects where status = 'INVALID'