In the fast-paced world of enterprise technology, a decade feels like a century. Yet, every now and then, a version comes along that refuses to die. For many DBAs, is that version.
If your organization is still holding a 10.2.0.5 environment, upgrading directly to a modern Long-Term Support (LTS) release like or Oracle 23c requires a highly systematic architectural progression. A direct in-place upgrade is impossible due to massive internal dictionary format changes. Step 1: Execute Pre-Migration Analysis oracle 10.2.0.5