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ORA-12537 Report on Connection to 32 Bit RDBMS via 64 Bit TNS Listener (Doc ID 744383.1)

Last updated on JANUARY 22, 2020

Applies to:

Oracle Net Services - Version to [Release 9.2 to 11.1]
Information in this document applies to any platform.
This problem can occur on any platform.


Connections to 32 bit database via a 64 bit TNS listener fail with error ORA-12537: TNS:connection closed. Connection is using (CONNECT_DATA=(SID=xxx))
Sqlplus screen output

LD_LIBRARY_PATH is picking up10g Oracle Home setting.
The connection required to use library, which was not found.


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