Re: CASE with test on null field

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#557

From: Bill Todd
Date: Thu, 20 Sep 2007 15:43

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Adalberto Baldini wrote:

> Use of NULL  ,  IS NULL,  (IS NULL)  are not allowed in Case
> statement.

That is not correct. Try the following agains the sample Employee
database.

SELECT COUNTRY,
CASE
  WHEN (CURRENCY = 'Dollar') THEN 'XXX'
  WHEN (CURRENCY IS NULL) THEN 'NULL'
ELSE
  CURRENCY
END AS CURRENCY
FROM COUNTRY
ORDER BY COUNTRY

-- 
Bill Todd (TeamB)

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