Since you are using a time your could try using a trigger which deleted
the row with the oldest (lowest) time. You would need to have an index
on the timestamp. I guess something like timestamp > 0 LIMIT 1 might work.
Sean Machin wrote:
Hi All,
I'm considering using SQLLite for an embedded project. Some of the data
I'd like to store is
timestamped sensor readings. I'd like to know if there is a way to
configure a table
so that it acts like a fixed length FIFO queue, e.g. stores 10,000
records then once full
drops off the oldest record each time a new one is inserted.
Can anyone tell me if we can do that with SQLLite?
Thanks,
Sean
