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Message Posted: Wed, 16 Jun 2004 @ 15:55:04 GMT

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Subj:   Re: How to identify numerics in alphanumerics ?
From:   Jeremy Christiansen

If you already know the data contains only numbers and letters, then the following will select all rows with pure numeric values:

sel col1 where upper(col1) (cs) = lower(col1);

This works by converting the alpha characters to uppercase (left side) and lowercase (right side) and then doing a casespecific comparison. If the two sides are not equal (for a particular row), then you know column1 does not contain pure numerics (e.g. digits 0 through 9).

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