Hi,

I have a select query which is selecting all records in a table (which has
around 8,000,000 rows in). "time" is a field of type "time". Should I be using
<= and >= or BETWEEN to find records in a certain range? Which does MySQL
optimise for?

select time,price from csq where id = 12345 and date = now() and time  >=
'10:00' and time <= '11:00';

select time,price from csq where id = 12345 and date = now() and time between
'10:00' and '11:00';


Kind Regards,


-- Alex


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