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並前往https://sites.google.com/site/archerdevil/home/database/not-exists

NOT EXISTS｜好你個負負得正！ - 鍵人

相對於EXISTS會將true值傳回，NOT EXISTS傳回的值應該是False。比如說下面這一段. SELECT Fname, Lname. From EMP. WHERE DEPT.DNUMBER=EMP.DNO. AND NOT EXISTS.

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