ORA-3137   from OCI driver when calling a PL/SQL procedure with OUT parameters
(Doc ID 2212922.1)
Last updated on JULY 15, 2020
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
1. The alert log and the trace file report with the following error
ORA-03137: TTC protocol internal error :        
2. The client is calling a PLSQL procedure with OUT binds
3. The client is OCI (NOT JDBC Thin).
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