Dependency and RDBMS QueryTemplate

[Rod Widdowson]

> Q: Does the attribute <Dependency> say anything about whether the attribute exists or is populated?

No, it is purely an instruction to the resolver to run the dependency before it runs the definition.  Plus unrelated some stuff
about what attributes it actually sees.

> If not, then if I want to guarantee a value is available to the query, does one need to add that to the activation condition?

I'm not sure what your question is but the activation conditions are tested _after_ the dependencies have been run but _before_ the
resolver is run (or not).  I'm not sure whether it is a guaranteed (documented) semantic, but it strikes me that it the the opposite
would be  meaningless.

R