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我正在上查询:如何乘2列?
SELECT
Name,
COUNT(*) Qty,
Points = CASE Name
WHEN 'Altruist' THEN 5
WHEN 'Analytical' THEN 5
WHEN 'Announcer' THEN 5
WHEN 'Autobiographer' THEN 5
WHEN 'Benefactor' THEN 5
WHEN 'Caucus' THEN 5
WHEN 'Citizen Patrol' THEN 5
WHEN 'Cleanup' THEN 5
WHEN 'Commentator' THEN 5
WHEN 'Critic' THEN 5
WHEN 'Custodian' THEN 5
WHEN 'Disciplined' THEN 5
WHEN 'Editor' THEN 5
WHEN 'Excavator' THEN 5
WHEN 'Informed' THEN 5
WHEN 'Investor' THEN 5
WHEN 'Mortarboard' THEN 5
WHEN 'Nice Answer' THEN 5
WHEN 'Nice Question' THEN 5
WHEN 'Organizer' THEN 5
WHEN 'Peer Pressure' THEN 5
WHEN 'Popular Question' THEN 5
WHEN 'Precognitive' THEN 5
WHEN 'Promotor' THEN 5
WHEN 'Proofreader' THEN 5
WHEN 'Quorum' THEN 5
WHEN 'Revival' THEN 5
WHEN 'Scholar' THEN 5
WHEN 'Self-Learner' THEN 5
WHEN 'Student' THEN 5
WHEN 'Suffrage' THEN 5
WHEN 'Supporter' THEN 5
WHEN 'Synonymizer' THEN 5
WHEN 'Tag Editor' THEN 5
WHEN 'Talkative' THEN 5
WHEN 'Teacher' THEN 5
WHEN 'Tumbleweed' THEN 5
WHEN 'Vox Populi' THEN 5
WHEN 'Archaeologist' THEN 10
WHEN 'Beta' THEN 10
WHEN 'Booster' THEN 10
WHEN 'Civic Duty' THEN 10
WHEN 'Constituent' THEN 10
WHEN 'Convention' THEN 10
WHEN 'Deputy' THEN 10
WHEN 'Enlightened' THEN 10
WHEN 'Enthusiast' THEN 10
WHEN 'Epic' THEN 10
WHEN 'Favorite Question' THEN 10
WHEN 'Generalist' THEN 10
WHEN 'Good Answer' THEN 10
WHEN 'Good Question' THEN 10
WHEN 'Guru' THEN 10
WHEN 'Necromancer' THEN 10
WHEN 'Notable Question' THEN 10
WHEN 'Outspoken' THEN 10
WHEN 'Pundit' THEN 10
WHEN 'Research Assistant' THEN 10
WHEN 'Reviewer' THEN 10
WHEN 'Sportsmanship' THEN 10
WHEN 'Strunk & White' THEN 10
WHEN 'Taxonomist' THEN 10
WHEN 'Tenacious' THEN 10
WHEN 'Yearling' THEN 10
WHEN 'Copy Editor' THEN 20
WHEN 'Electorate' THEN 20
WHEN 'Famous Question' THEN 20
WHEN 'Fanatic' THEN 20
WHEN 'Great Answer' THEN 20
WHEN 'Great Question' THEN 20
WHEN 'Legendary' THEN 20
WHEN 'Marshal' THEN 20
WHEN 'Populist' THEN 20
WHEN 'Publicist' THEN 20
WHEN 'Reversal' THEN 20
WHEN 'Stellar Question' THEN 20
WHEN 'Steward' THEN 20
WHEN 'Unsung Hero' THEN 20
ELSE 0
END,
Qty * Points AS Total
FROM Badges
WHERE UserId = 1563422
GROUP BY Name
ORDER BY COUNT(*) DESC
这一切工作,除了在添加, Qty * Points AS Total
为(以从查询客场上面run the query成功)。
我得到的错误是:
无效的列名 '
Qty
'。无效的列名称'
Points
'。
我怎么能繁殖Qty
和Points
为Total
?
完美的作品,非常感谢!马哈茂德 – 2013-03-15 00:55:51
@DannyBeckett - 随时欢迎您:) – 2013-03-15 01:08:51
......我不假设您可能知道如何获得“GrandTotal”? http://chat.stackoverflow.com/rooms/26206/room-for-danny-beckett-and-mahmoud-gamal – 2013-03-15 01:14:04