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Whenever you write a query where you need to filter out rows on a range of values – then should I use the BETWEEN clause or <= and >= ?
Which one is better in performance?
Neither. They create exactly the same execution plan.
The times where I use them depends not on performance, but on the data.
If the data are Discrete Values, then I use
BETWEEN…x BETWEEN 0 AND 9But if the data are Continuous Values, then that doesn’t work so well…
x BETWEEN 0.000 AND 9.999999999999999999Instead, I use
>= AND <…x >= 0 AND x < 10Interestingly, however, the
>= AND <technique actually works for both Continuous and Discrete data types. So, in general, I rarely useBETWEENat all.