Precompilers and OCI (MOSC)

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Help! OCITransStart() failure:ORA-00162: external dbid length 0 is greater than maximum (16)

edited Nov 14, 2011 6:40AM in Precompilers and OCI (MOSC) 6 commentsAnswered
I'd like to start transactions on two DBs respectively, prepare, and then commit or forget them together.
I tried some example codes in OCI guid to start one transaction on one DB first. Only DB name/username/password changed.

But when OCITransStart() was called, ORA-00162 occurred: external dbid length 0 is greater than maximum (16).

I don't know why the length is 0, but greater than maximum.
And I think dbid was right since OCI functions before and after OCITransStart() worked well.

1. what's wrong with example codes?
2. How to set XID? I just copied codes from Guide. Is that ok?

Here are example codes from OCI guide:

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