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  3. October 2001

Re: sorting

At 12:26 10/26/2001, Angela Wawrzszek wrote:
>I have a 2 position text field that I am sorting by.  The codes go from AA,
>AB...A1, A2... BB, B1  etc.  We are sending this to a sql server.  When they
>sort it,  the order is  A1, AA,  ...B1, BB   The numerics are taking
>precedence.  They say it is sorting ascii.  I thought ascii sort was
>alpha/numeric also???

Well, it is, but the ASCII numeric characters come before the letters in
the collating sequence (digits are x'30' - x'39' (if I mismember
correctly), and all of the letters are after that. With EBCDIC, it's
reversed. The numbers are x'F0' - x'F9' (again, with possible
mismemberment), and all of the letters are before that. So, when you do a
character set translation from EBCDIC to ASCII, you actually modify the
collating sequence.


Pete Hall
pbhall@execpc.com
http://www.execpc.com/~pbhall/

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