PL/SQL Developer and the Oracle 11g 64-bit Client

You will need to install a 32 Bit Oracle11g Client. PL/SQL Developer is a 32 Bit application, so it cannot interface with a 64 Bit Oracle Client.

The 32 Bit Oracle Client can communicate with a 64 Bit Server, even on the same machine if necessary. The 32 Bit client can coexist with a 64 Bit Oracle installation when installed in separate Oracle Home directories.
 
Hi Marco,

DOA supports 64 bit, right?
Why don't you create a 64-bit version of PL/SQL Developer?

Regards,
Bas
 
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