The E-Business Suite Technology Codelevel Checker (ETCC) tool helps you identify application or database tier overlay patches that need to be applied to your Oracle E-Business Suite Release 12.2 system. ETCC maps any missing overlay patches to the default corresponding Database Patch Set Update (PSU) patches, and displays them in a patch recommendation summary.
The ETCC tool was designed to be self-documenting, but you can find an introduction to it in Section 3 of Oracle E-Business Suite Release 12.2: Consolidated List of Patches and Technology Bug Fixes (MOS Note 1594274.1).
ETCC has been updated to include bug fixes and patching combinations for the following recommended versions:Database
We recommend always using the latest version of ETCC, as new bugfixes will not be checked by older versions of the utility. The latest version of the ETCC tool can always be downloaded via Patch 17537119 from My Oracle Support.