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Message Posted: Fri, 16 Aug 2002 @ 20:18:26 GMT

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Try

INSERT INTO NEWTABLE
( SUBSTRFLD)
SELECT
CASE WHEN SUBSTR(WHOLEFLD,4,1) = 'S' THEN 'S'
WHEN SUBSTR(WHOLEFLD,4,1) = 'N' THEN 'N'
ELSE NULL
END
FROM OLDTABLE;

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