Tell does not work me Why "BETWEEN" for some cases

Dear all,
This is my first post in this forum. I have a few questions which not works in some cases given below.

When I run below statements, I get the result.
(1) SELECT "record found" where double '1' BETWEEN ' 0 'AND 21'; -I get record
(2) SELECT "record found" where double '2' BETWEEN ' 0 'AND 21'; -I get record
(3) SELECT "record found" where double '3' BETWEEN ' 0 'AND 21'; -I don't get record
(4) SELECT "record found" where double '03' BETWEEN ' 0 'AND 21'; -I get record


Try this and tell me why the case 3 is fails

Published by: user12979754 on April 19, 2010 06:25

user12979754 wrote:
My question is for the 'channels' only.

But you are confused "numbers" and "ropes"... of course, to a human being, 03 and 3 are the same - three. But at a computer, '03' If a string is NOT the same as "3". These are different things, and the 'numbers' in the string are simply characters.

'03' is between '0' and '21' because the first character in the string ('0') enter in the range ' 0 'to 2'. "3" is not between '0' and '21' because '3' is not between the range ' 0 'to 2'.

Tags: Database

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