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Message Posted: Wed, 09 Nov 2005 @ 23:02:01 GMT

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The expression

     CASE WHEN Column2 IS NULL then '' ELSE Column2 END Column2a

will be typed CHARACTER SET UNICODE (because literal character strings are UNICODE).

On the other hand,

     COALESCE(Column2, '') Column2b

or

     CASE WHEN Column2 IS NOT NULL THEN Column2 ELSE '' END Column2b

will have the same CHARACTER SET as Column2, e.g. LATIN.

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