COALESCE is a function you put into your query that takes the first non-NULL value.
As for what's going on ... You said this returns a cursor. What happens in TOAD if you subsequently run through all the rows in the cursor? I suspect that DBD::Oracle is doing just that while TOAD isn't.
My criteria for good software:
- Does it work?
- Can someone else come in, make a change, and be reasonably certain no bugs were introduced?
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