我有兩個完全相同的數據庫,整個數據堆從1到另一個都被引入,無論出於何種原因,似乎沒有標誌指示哪個是遷移記錄。比較兩個數據庫中的多個列數據
即時嘗試要做的是比較每個數據庫中的多個字段,以查看哪些記錄被遷移。
因此,例如,DB1可能在作業表中有10,000個作業,而DB2(舊的)有2,000個作業。我知道那些2000個工作被計入DB1的10,000個工作中,但是如果不比較多個列,我就無法區分這兩個工作,直到我得到正確的數字。
我嘗試以下,但無疾而終,並給我結果0:
SELECT COUNT(*) FROm Job j
FULL OUTER JOIN [DB2.dbo.job jc ON CAST(j.jobID AS NVARCHAR(20)) = jc.jobTitle
WHERE j.AMID = jc.amid
AND j.ClientID = jc.clientID
AND j.personID = jc.ClientID
AND j.JobReceivedDate = jc.JobReceivedDate
AND j.JobTitle = jc.JobTitle
任何幫助,在此,將不勝感激。
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在超過300萬行的代碼如下結果:
SELECT
d1.JobTitle, d1.AMID, d1.CLIENTID, d1.PersonID,
d2.JobTitle, d2.AMID, d2.CLIENTID, d2.PersonID,
[RESULT] = CASE
WHEN (d1.AMID = d2.AMID OR (d1.AMID IS NULL AND d2.AMID IS NULL))
AND (d1.CLIENTID = d2.CLIENTID OR (d1.CLIENTID IS NULL AND d2.CLIENTID IS NULL))
AND (d1.PersonID = d2.PersonID OR (d1.PersonID IS NULL AND d2.PersonID IS NULL))
THEN 1 ELSE 0 END
FROM [db1].dbo.Job AS d1
FULL OUTER JOIN
[db2].dbo.Job AS d2
ON D1.JobTitle = D2.JobTitle
只有84000在這個表中的記錄。
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更改我的初始查詢到以下行之有效:
SELECT DISTINCT j.jobID, jc.jobID, jc.JobTitle, j.JobTitle FROM Job j
FULL OUTER JOIN [Gulf-Jobs].dbo.job jc ON j.JobTitle = jc.JobTitle
WHERE j.JobTitle = jc.JobTitle
AND j.ClientID = jc.clientID
AND j.personID = jc.personID
AND j.JobReceivedDate = jc.JobReceivedDate
AND j.JobTitle = jc.JobTitle
AND j.JobUpdatedDate = jc.JobUpdatedDate
AND j.JobTypeID = jc.JobTypeID
AND j.JobStatusID = jc.JobStatusID
ORDER BY Jc.JobID
按照此鏈接:http: //stackoverflow.com/questions/14441579/compare-the-value-of-multiple-columns-from-two-different-databases。希望有幫助。 – vanloc
'作業j內部連接DB2.dbo.job上的select count(*)j.AMID = jc.amid AND j.ClientID = jc.clientID AND j.personID = jc.ClientID AND j.JobReceivedDate = jc.JobReceivedDate 和j.JobTitle = jc.JobTitle' 試試這個 – Pream
感謝vanloc,每當我嘗試運行腳本建議它給了我300萬行有隻有84000總表中有 –