NOT IN 與 <> ALL 兩個語句是相同的：

		
SELECT s1 FROM t1 WHERE s1 <> ALL (SELECT s1 FROM t2);
SELECT s1 FROM t1 WHERE s1 NOT IN (SELECT s1 FROM t2);
		
		

IN 與 "＝ANY" 兩個語句是一樣的：

SELECT s1 FROM t1 WHERE s1 = ANY (SELECT s1 FROM t2);
SELECT s1 FROM t1 WHERE s1 IN    (SELECT s1 FROM t2);
		

			
select * from members where id = any(select members_id from accounts where id < 100);