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Databases SQL Basics Finding the Data You Want Searching Within a Range of Values

Posted by Iain Simmons
Iain Simmons
Treehouse Moderator 32,305 Points

BETWEEN is inclusive

Not specifically a question, but just something I noted while watching this video: the BETWEEN keyword is inclusive of the values. That is, we should think of it replacing the greater-than-or-equal-to >= and less-than-or-equal-to <=

2 Answers

Steven Parker
Steven Parker
231,261 Points
Steven Parker
Steven Parker
231,261 Points

Yes, essentially this:

WHERE something BETWEEN x AND y

is shorthand for:

WHERE something >= x AND something <= y

Not what you'd expect if you consider the word between literally! But I think SQL may have been created to appease accountants and not programmers. :wink:

Nathan Tallack
Nathan Tallack
22,160 Points
Nathan Tallack
Nathan Tallack
22,160 Points

A little counter intuative. Especially to a programming mindset. You would not expect between to default to inclusive.

Good to know though. Thanks for that. :)

Ryan Hartigan
Ryan Hartigan
3,425 Points
Ryan Hartigan
Ryan Hartigan
3,425 Points

Is this similar with other systems like Postgres as well?