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我已经在TABLE_1从A到Z 场我也一直在与TABLE_2域B,G和PSQL Server 2005 LEFT JOIN?
我怎么能找到的所有记录从TABLE_1 不是:
TABLE_1.B = TABLE_2.B
TABLE_1.G = TABLE_2.G
TABLE_1.P = TABLE_2.P
在SQL Server 2005中?
我已经在TABLE_1从A到Z 场我也一直在与TABLE_2域B,G和PSQL Server 2005 LEFT JOIN?
我怎么能找到的所有记录从TABLE_1 不是:
TABLE_1.B = TABLE_2.B
TABLE_1.G = TABLE_2.G
TABLE_1.P = TABLE_2.P
在SQL Server 2005中?
SELECT t1.*
FROM TABLE_1 t1
WHERE NOT EXISTS(SELECT 1
FROM TABLE_2 t2
WHERE t1.B = t2.B
AND t1.G = t2.G
AND t1.P = t2.P)
这些条件是包容还是排斥? – JNK 2012-02-06 18:46:05