我有一個表包含多個日期的多個記錄。全外連接不返回所有行?
我想看看「日期1」和「日期2」之間的區別,我的完整外連接沒有返回我期待的數據。
我知道在日期1和13282在日期2有13278行 - 因此,我期望看到至少13282行,但我回到13195 ...這是一個INNER JOIN
(我測試了這個)。
我希望像結果:
001 00NULL 1000
001 000124 009 1000 1000
001 000125 009 1000 1000
001 000126 009 1000 NULL
但這不會從任何一方得到任何空行?
SELECT
COALESCE(c.AccountBranch, p.AccountBranch)
, COALESCE(c.AccountNumber, p.AccountNumber)
, COALESCE(c.AccountSuffix, p.AccountSuffix)
, c.PrincipleAmount
, p.PrincipleAmount
FROM ADStaging..cb_account_extension_principle_dpd c
FULL OUTER JOIN ADStaging..cb_account_extension_principle_dpd p
ON p.AccountBranch = c.AccountBranch
AND p.AccountNumber = c.AccountNumber
AND p.AccountSuffix = c.AccountSuffix
WHERE
(c.BusinessDataDate IS NULL OR c.BusinessDataDate = @CurrentBusinessDataDate)
AND
(p.BusinessDataDate IS NULL OR p.BusinessDataDate = @PreviousBusinessDataDate)
這工作 - 結合的 「鑰匙」 在兩個單獨的SELECT語句中加入?
SELECT
COALESCE(C.Account, P.Account) AS Account
, COALESCE(C.AccountBranch, P.AccountBranch) as AccountBranch
, COALESCE(C.AccountNumber, P.AccountNumber) as AccountNumber
, COALESCE(C.AccountSuffix, P.AccountSuffix) as AccountSuffix
, P.PrincipleAmount AS PreviousAmount
, C.PrincipleAmount AS CurrentAmount
, ISNULL(C.PrincipleAmount, P.PrincipleAmount) - ISNULL(P.PrincipleAmount,0)
FROM
(SELECT
(pd.AccountBranch + pd.AccountNumber + pd.AccountSuffix) AS Account
, pd.AccountBranch
, pd.AccountNumber
, pd.AccountSuffix
, pd.PrincipleAmount
FROM ADStaging..cb_account_extension_principle_dpd pd
WHERE pd.BusinessDataDate = @CurrentBusinessDataDate) C
FULL OUTER JOIN
(SELECT
(pd.AccountBranch + pd.AccountNumber + pd.AccountSuffix) AS Account
, pd.AccountBranch
, pd.AccountNumber
, pd.AccountSuffix
, pd.PrincipleAmount
FROM ADStaging..cb_account_extension_principle_dpd pd
WHERE pd.BusinessDataDate = @PreviousBusinessDataDate) P
ON P.Account = C.Account
WHERE
(P.PrincipleAmount IS NULL OR C.PrincipleAmount IS NULL)
OR
P.PrincipleAmount <> C.PrincipleAmount
但這並不 - 加入對組合值 - 只有當他們單獨的表?
SELECT
COALESCE(c.AccountBranch, p.AccountBranch)
, COALESCE(c.AccountNumber, p.AccountNumber)
, COALESCE(c.AccountSuffix, p.AccountSuffix)
, c.PrincipleAmount
, p.PrincipleAmount
FROM ADStaging..cb_account_extension_principle_dpd c
FULL OUTER JOIN ADStaging..cb_account_extension_principle_dpd p
ON (p.AccountBranch + p.AccountNumber + p.AccountSuffix)
= (c.AccountBranch + c.AccountNumber + c.AccountSuffix)
WHERE
(c.BusinessDataDate = @CurrentBusinessDataDate)
AND
(p.BusinessDataDate = @PreviousBusinessDataDate)
執行計劃顯示這是運行INNER JOIN?現在很困惑! – BlueChippy 2013-04-23 11:29:13
在哪裏殺死一個外連接的條件。 – Paparazzi 2013-04-23 13:50:06