Friends while executing a query in unix if we get any error say ORA-00904
now if we want to get the explanation for that error we issue the command
!oerr ORA 00904
Similar way how to get the explanation of error in Windows

>Friends one personal question, i am a fresher and have joined Oracle DBA course recently, i am worried about my career as most of my friends are saying it is very difficult to get a job for freshers in this field and in this situation its almost impossible.After this i have just lost some interest in the course.Friends please do give me good suggestion
Thanks & Regards
Laxman Rathod