I have two tables, Alerts(iscomplete, threshold, isup, coinid) and Coins(coinid, LastPriceBtc) Coin table is updated regularly with prices (going up n down).
I want to trigger alerts that meet the thresholds but I am having difficulty writing the correct query and making it efficient.
Basically what I would like to do is, if alert is not complete (!IsComplete) then if the IsUp field is true then I want to check if the price of coin (coin.price) is >= then alert.threshold, and if the IsUp field is 0 (down) then check to see if the threshold is <= then coin.LastPriceBtc.
Here is what I got so far
select * from alerts a inner join coins c on c.coinid = a.coinid where (a.IsComplete <> 1) and
( (a.IsUp = 1 and a.Threshold >= c.LastPriceBtc) or (a.IsUp = 0 and a.Threshold >= c.LastPriceBtc))
Is this the most efficient way to write this query?
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