SELECT statement not working correctly - 500 pts.

I have the following SQL statement:

select max(BookNbr) from tBooks where isnumeric(BookNbr) = 1

where BookNbr is defined as PK, varchar(15).

When I start from zero (empty), the select statement returns "9", when the highest number is "10".  I have tried removing the "where" clause and changing it to >0, but stills returns "9".

What am I doing wrong?
rmmarshAsked:
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appariCommented:
try

select max(convert(numeric(15,0),BookNbr)) from tBooks where isnumeric(BookNbr) = 1
0

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rmmarshAuthor Commented:
Thank you so much... works like a champ!
0
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Microsoft SQL Server 2005

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