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Oracle Function to find where TO_NUMBER fails

mjfigur asked
Last Modified: 2012-05-12
I am trying to convert a column that is currently a VARCHAR2 into a number using TO_NUMBER, however of the 16,000+ rows there are just one or two that are not numbers and therefore causing the conversion to fail. I am new to functions. How could I write one or possible if Oracle already has one that could flag these individual accounts as 'Not Number'? Hope I explained it fully.
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