A nested query to become a connection to the inquiry

xiaoxiao2021-03-06  46

Master: Can this SQL statement can be changed to a connection query? Servers: overmind (overmind) level: credit value: 100 community: Oracle development problem points: 100 Reply times: 6 Posted: 2004-12-14 10:31:43

Select T1.Oid from T1 Where T1.OID NOT IN (SELECT OID from T2 Where T2.Userid = 'overmind');

Reply to: OVERMIND () Reputation: 100 2004-12-14 10:32:07 Score: 0

Thank you!

TOP

Reply to: orarichard (there is no money to be very difficult) () Reputation: 100 2004-12-14 10:38:00 Score: 100

Select T1.Oid from T1, (Select Oid from T2 Where T2.Userid = 'overmind') T3

WHERE T1.OID <> T3.OID

TOP

Reply to: orarichard (no money is so difficult) () Reputation: 100 2004-12-14 10:40:49 Score: 0

is acceptable

SELECT T1.OID from T1,

(

SELECT OID FROM T1

minus

Select Oid from T2 Where Userid = 'overmind'

) T3

WHERE T1.OID = T3.OID;

转载请注明原文地址:https://www.9cbs.com/read-80811.html

New Post(0)