Oracle error -4068

Question

Hai friends,
We got qc defect stating error in execution of package b01 -4068. ( Error message is user defined and error number is from oracle error)
can you friends pls tell me
1) what is that error meaning. i found it is due to Oracle package has been discarded. status may be invalid.
2) when i check the package in the owner, i found it is valid. Now the application is running correctly.
Pls tell me
1) this error comes only when package becomes invalid?
2) suddenly how the package becomes invalid? because it get this error very rarely. Iam the only user , no one can compile that package without my knowledge.
3) thus this error comes due to invalid objects in other owner also?
Give your suggestions
S

Answer 1

Are you using Oracle 10.2.0.3? There is a known issue (Bug 6136074) that can cause this error.
Even is objects are valid, the dependancy timestamps can become out of synch and this error occours.
There is a patch available to fix this.
This sql will show you if you have dependancy missmatches:
select do.obj# d_obj,do.name d_name, do.type# d_type,
po.obj# p_obj,po.name p_name,
to_char(p_timestamp,'DD-MON-YYYY HH24:MI:SS') "P_Timestamp",
to_char(po.stime ,'DD-MON-YYYY HH24:MI:SS') "STIME",
decode(sign(po.stime-p_timestamp),0,'SAME','*DIFFER*') X
from sys.obj$ do, sys.dependency$ d, sys.obj$ po
where P_OBJ#=po.obj#(+)
and D_OBJ#=do.obj#
and do.status=1 /*dependent is valid*/
and po.status=1 /*parent is valid*/
and po.stime!=p_timestamp /*parent timestamp not match*/
order by 2,1;
- if you find anything, the workaround is to recompile the parent objects