IMP-00010 not a valid export file, header failed verification

[orafan]

hello,

A colleague of mine who was previously working in our company had taken a dump from JServer. The file is a .dmp file of almost 200mb. Now I have to import this dump backup file in the database. When I try to import from JServer, I get errors like this:

IMP-00010 not a valid export file, header failed verification
IMP-00000: Import terminated unsuccessfully


It's strange because i called him up and he says he has exported and imported many times. Does anyone know when this error occurs?

thank's in advance

[Arju]

OS of the machine from where you are try to?

[Arju]

As well as the exp version of the machine from where you take export and imp version of the machine from where you try to do import version. Also give oracle version and machine OS of source database.

[rajavu]

There are basically 2 majour reason for the Error IMP-00010.

1. Dump file is Correpted or in in bad format . In your case , it could be transferred in ASCII mode and not in Binary mode during FTP transfer. In that the case re transfer the same file in Binary mode and try.

2. Version compatibility issue. Like Lower version of IMP utility tried to import higher version of export dump. eg. IMP vrsion 9 is used to import the export file of DB version 10. In that case, use appropriate version of import utility.

[Arju]

Also related several bugs there.

[orafan]

hey guys thanks..

Actually as Rajavu pointed out the problem was that the export was done from a later version of the export utility and i was attempting to import with an earlier version. So the lesson i learned is that, export should be done with the lower database version EXP utility (lower when you compare a source and a target database versions). And one should do the import using the target database version.