We are going to upgrade & migrate the 11i (32 Bit) to R12 (64 Bit), Also confirm whether we can upgrade and migrate the db from 9i to 11gR2 in single step,
Yes, its possible.
please refer MOS tech notes:
Export/Import Process for EBS 11i on RDBMS 12c (Doc ID 1585257.1)
Export/import notes on Applications 11i Database 11g (Doc ID 557738.1)
R11i / R12: Oracle E-Business Suite Upgrades and Platform Migration (Doc ID 1377213.1)
How to Perform a Full Database Export Import During Upgrade, Migrate, Copy or Move of a Database (Doc ID 286775.1)
Migrating Oracle E-Business Suite R12 from Linux 32-bit to Linux 64-bit (Doc ID 471566.1)
X A H E E R
Can you please tell me apart from export/import is there any other possibilities to succeed this??