[Therion] Database use

[Bruce]

Wow Andrew I like it.

Presumably one can run it on local sql files (stored on your computer, not a
web page)?  

A minor terminology thing: I presume passage height means passage altitude.
I don't know much about UK caves, but if the majority of Cheddar caves have
passages 200m to 240m high, then presumably many of them are also quite wide
and the UK cavers that come to New Zealand have been lying about how tight
their cave passages are!

We'll have to think of some more useful searches...
Perhaps by shot flag (surface, duplicate, splay, approximate, explored),
By station flag (entrance, continuation, fixed, spring, sink, doline, dig,
air-draught, overhang or arch), 
Loop closure information (not sure if this is in the sql output yet),
Maybe even distance between stations - although that might be better done
from Loch.

Bruce