Question

I’ve had a good dig around and while I can find hints on how to achieve this I can’t quite get to see the full solution.

I have a table (t_splits) in which records get streamed in from multiple sources. Each row contains an ID (split_id – auto-increment), a time (split_time) in the format HH:MM:SS (which is time local to where the record originated) and a timestamp column (inserted_ts – which is, obv, the time the record was inserted).

This table is populated over time via a socket-server listening for these streams.

What I want to then do is to select any records that were inserted more than, say, 10 seconds ago sorted by HH:MM:SS column earliest time first.

SELECT   * 
FROM     t_splits
WHERE    ?? (something to do with inserted_ts and Now and the 10 sec delay) 
ORDER BY ?? (something using HH, MM & SS)

It will be a bit more complicated in real life but that’s the basic setup.

Any help would be greatly appreciated.

Thanks
Nymor

Answer 1

  SELECT * from t_splits WHERE insert_ts < date_sub(now(),interval 10 second)
 order by   insert_ts ;

( assuming “earliest time” means oldest first )