RE: How to avoid ora-1722 invalid number

well use exception handling....i.e to say when the control comes to when value_error exception it is understood that the field was not pure number hence u can handle the situation as u desire else carry on as intended.

rgds,
Ams.
www.medicomsoft.com

-----Original Message-----
Rick_Cale_at_teamhealth.com
Sent: Tuesday, August 06, 2002 8:49 PM
To: Multiple recipients of list ORACLE-L

Hi,

I have a table with a column defined as varchar. This field will always have numbers but some of them have underscores in the data which is also valid
data. I want to be able to query the table using a to_number() in the where clause. Obviously I am getting ora-1722.

I cannot apply clause to try to filter the '_' data out as it will do a FTS and apply to_number to that field anyway.

Any suggestions?

Thanks
Rick

SELCT *
FROM <table>
WHERE TO_NUMBER(<field>) BETWEEN 10 AND 10000;

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