Group By Thing

I try to do:

DECLARE
@ThisMinute DateTime,
@ThisDay DateTime

SET@ThisMinute = DATEADD(MINUTE, DATEDIFF(MINUTE, '20000101', CURRENT_TIMESTAMP), '20000101')
SET@ThisDay = DATEADD(DAY, DATEDIFF(DAY, '20000101', CURRENT_TIMESTAMP), '20000101')

SELECT
row_number() over (order by MAX(HeadlineDate)) as Number,
COUNT(ArticleID) AS [Count],
MIN(DATEADD(dd, - (DAY(HeadlineDate) - 1), HeadlineDate)) AS HeadlineDate
FROM
dbo.ZMArticle
WHERE
PortalID=0

GROUP BY
MONTH(HeadlineDate), Year(HeadlineDate)
ORDER BY
MAX(HeadlineDate) desC

Which works fine, but when I do:

DECLARE
@ThisMinute DateTime,
@ThisDay DateTime

SET@ThisMinute = DATEADD(MINUTE, DATEDIFF(MINUTE, '20000101', CURRENT_TIMESTAMP), '20000101')
SET@ThisDay = DATEADD(DAY, DATEDIFF(DAY, '20000101', CURRENT_TIMESTAMP), '20000101')

SELECT
row_number() over (order by MAX(HeadlineDate)) as Number,
COUNT(ArticleID) AS [Count],
MIN(DATEADD(dd, - (DAY(HeadlineDate) - 1), HeadlineDate)) AS HeadlineDate
FROM
dbo.ZMArticle
WHERE
PortalID=0
AND
Expiredate <> Null
GROUP BY
MONTH(HeadlineDate), Year(HeadlineDate)
ORDER BY
MAX(HeadlineDate) desC

it doesn't return anything....

How can I change that


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