> and >= give the same result

Hi list,

I'm trying to help a friend with his queries and I've something
strange (well, to me:):

SELECT * FROM tb1 WHERE note > 'y';

returns the *same* result as:

SELECT * FROM tb1 WHERE note >= 'y';

There's something wrong: I though I'd have:
1st qry: z%
2nd qry: y% and z%

What is wrong with using '>' &| '>=' with strings?

I also know there's a page talking about that in the docs, but I
can't find it.

JY
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