以下是我使用的内容
2015年数据库的SQL版本。
Microsoft SQL server management studio v17.7
我正在使用" Los Angeles Dodgers"统计数据和我根据我的选择 该网站并从以上数据库中提取Website for ESPN Los Angeles Dodgers
我尝试使用7个单独的选择语句重新创建网站。我目前在我的第二个选择陈述中遇到问题,第二个目的是在底部提供一个总计行,就像在网站上一样。
(所以我的主要问题是有人可以帮我修复我的第二个选择。)
(我的第二个问题是我可以在创建另外5个问题时得到一些帮助 选择与下图对应的语句。)
(第一) 主体选择:
SELECT
nameFirst + ' ' + nameLast AS Name,
G AS GP,
AB,
R,
H,
H - B2 - B3 - HR AS S,
B2 AS '2B',
B3 AS '3B',
HR,
RBI,
(((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4)) AS 'TB',
BB,
SO,
SB,
(H * 1.0) / (CASE
WHEN AB = 0 THEN 1
ELSE AB
END) AS 'BA',
(CASE
WHEN (H + BB + HBP) = 0 THEN 0
ELSE ((H + BB + HBP) * 1.0)
END) / (CASE
WHEN (AB + BB + HBP) = 0 THEN 1.0
ELSE ((AB + BB + HBP) * 1.0)
END) AS 'OBP',
(CASE
WHEN (((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4)) = 0 THEN 0
ELSE (((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4))
END) / (CASE
WHEN AB = 0 THEN 1
ELSE AB
END) AS 'SLG',
(CASE
WHEN (H + BB + HBP) = 0 THEN 0
ELSE ((H + BB + HBP) * 1.0)
END) / (CASE
WHEN (AB + BB + HBP) = 0 THEN 1.0
ELSE ((AB + BB + HBP) * 1.0)
END) +
(CASE
WHEN (((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4)) = 0 THEN 0
ELSE (((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4))
END) / (CASE
WHEN AB = 0 THEN 1
ELSE AB
END) AS 'OPS'
FROM Players
LEFT OUTER JOIN Batting
ON Players.playerIDpk = Batting.playerID
WHERE teamID = 'LAN'
AND yearID = '2012'
ORDER BY BA DESC
Click Here - For Image of above select output
(第二) 总选择次数:
SELECT
'' AS Total,
'162' AS 'GP',
SUM(AB) AS 'AB',
SUM(R) AS 'R',
SUM(H) AS 'H',
SUM(B2) AS '2B',
SUM(B3) AS '3B',
SUM(HR) AS HR,
SUM(RBI) AS RBI,
SUM((((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4))) AS 'TB',
SUM(BB) AS BB,
SUM(SO) AS 'SO',
SUM(SB) AS 'SB',
AVG((H * 1.0) / (CASE
WHEN AB = 0 THEN 1
ELSE AB
END)) AS 'BA',
AVG((CASE
WHEN (H + BB + HBP) = 0 THEN 0
ELSE ((H + BB + HBP) * 1.0)
END) / (CASE
WHEN (AB + BB + HBP) = 0 THEN 1.0
ELSE ((AB + BB + HBP) * 1.0)
END)) AS 'OBP',
AVG((CASE
WHEN (((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4)) = 0 THEN 0
ELSE (((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4))
END) / (CASE
WHEN AB = 0 THEN 1
ELSE AB
END)) AS 'SLG',
AVG((CASE
WHEN (((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4)) = 0 THEN 0
ELSE (((H - B2 - B3 - HR) * 1.0) + (B2 * 2) + (B3 * 3) + (HR * 4))
END) / (CASE
WHEN AB = 0 THEN 1
ELSE AB
END)) AS 'OPS'
FROM Players
LEFT OUTER JOIN Batting
ON Players.playerIDpk = Batting.playerID
WHERE teamID = 'LAN'
AND yearID = '2012'
这是我的总选择返回的内容和不正确的内容。
以下是我在运行总计选择时应返回的内容我不知道自己做错了什么。
答案 0 :(得分:0)
仅查看列BA
的总值,显然您没有进行与它们相同的计算,而不是计算平均值,您应该计算列之和的比率{{1 }和H
所以替换
AB
带
AVG((H * 1.0) / (CASE
WHEN AB = 0 THEN 1
ELSE AB
END)) AS 'BA',
我没有检查其他不正确的列,但我认为这是同样的问题。