Julien LEFORT wrote:
This looks like a great solution. Just another point,
what if I want to fill this "ring buffer" automatically by using triggers on
other tables, and be able to reset the counter of the ring buffer when I
arrive at the max integer value of the primary key.
--Create
This looks like a great solution. Just another point,
what if I want to fill this "ring buffer" automatically by using triggers on
other tables, and be able to reset the counter of the ring buffer when I
arrive at the max integer value of the primary key.
For example :
-- the table to be used
Looks like the experts have given good advice. I'll try a different tack...
Have a look at http://www.sqlite.org/cvstrac/tktview?tn=1476 The author
pointed me to this patch in response to my question about keeping a foreign
sequence. But, I think the patch could work equally well for you,
Adler, Eliedaat wrote:
Sean Wrote ===
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
>Sean Wrote ===
>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
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
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