在MERGE sql server的ON搜索條件中合併兩列

Question

我有兩個日期列[START DATE]和[END DATE]，我只想插入其日期不在任一列中的記錄。這是我的邏輯是這樣的：

MERGE TABLE_A          AS Target 
USING (SELECT DISTINCT * FROM TABLE_B)    AS Source 
ON (SELECT Target.[START DATE] + Target.[END DATE] AS Target.[COMPAREDATE] = 
    SELECT Source.[START DATE] + Source.[END DATE] AS Source.[COMPAREDATE]) 
WHEN NOT MATCHED THEN 
INSERT ([DATE ADDED], [END DATE], ...) 
VALUES (Source.[DATE ADDED], Source.[END DATE], ...); 

我也嘗試下面的代碼，但它繼續插入重複：

ON (Target.[START DATE] = Source.[START DATE] AND Target.[END DATE] = Source.[END DATE]) 

我會很感激任何幫助，謝謝！

Answer 1

此代碼是接近：

ON (Target.[START DATE] = Source.[START DATE] AND Target.[END DATE] = Source.[END DATE]) 

它說，「如果這兩個起始日期和結束日期的比賽，那麼相匹配的行」。

如果你想說「如果任一StartDates匹配或EndDates匹配，則排比賽」，那麼你應該這樣做：

ON (Target.[START DATE] = Source.[START DATE] OR Target.[END DATE] = Source.[END DATE])