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Message Posted: Mon, 02 Jul 2007 @ 13:01:54 GMT

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Hi,

You can try this :

     select substring(field from char(field) for 1) ||
     substring(field from char(field)-1 for 1) ||
     substring(field from char(field)-2 for 1) ||
     substring(field from char(field)-3 for 1) ||
     substring(field from char(field)-4 for 1) AS REVERSE_STRING
     ,SUBSTRING(field FROM CHARACTERS(field) - POSITION('_' IN
     REVERSE_STRING)+2)

Adapt the substring reverse sequence with max characters following the last '_'.

You can also use the UDF.

I hope help you

Regards

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