Disclamer: I haven't tried this with DBD::Oracle so I could be all wet.

At work we regularly connect to oracle databases of one version using clients of a different version (i.e. connecting to a 9i or 10g database using an 8 client). The only issue that I seem to recall was trying to access new 8i functionality with an older (7.2 I think) client.

As for which clients should work with which databases, there's a "Oracle Client / Server Interoperability Support" matrix out on the Oracle metalink site. Additionally, this note may also help clarify the OCI question a bit.

Hope that helps.

In reply to Re^3: connecting toOracle7 and Oracle9 simultaneously by gsiems
in thread connecting toOracle7 and Oracle9 simultaneously by bestrafer

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