scott wrote:
> Now, is it possible to do a search using SQL that does something like
> this: Find all the times that an experiment has gone over temperature
> while switched on (ie after a switched on event but not after a switched
> off
> event)?  This is beyond my basic knowledge how I would do such a thing
> without writing some code to manually search the results and checking
> times.

I know enough about SQL to be able to get a complete list of students
(including their phone numbers and course marks) from a supposedly
important university in my area, through the SQL injection bug a friend
found, but your question goes beyond my knowledge too.

It would be easier if you had a "switched on" column on each temperature
event, saying if at that event the...thing was on or off.

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