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FrontPage › 譴覲牛蟇壱蠍(2005伎)
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1 #貉るる一 覲企 螳 譴覲牛 蟇壱螻 矩る 讌覓碁れ 殊り . 襯 れ れ螻 螳 蟆曙磯.
-- 企 CREATE TABLE MEMBER( IDX int identity(1,1) , NAME Char(20) ) GO -- 一危 INSERT INTO MEMBER VALUES('A') INSERT INTO MEMBER VALUES('A') INSERT INTO MEMBER VALUES('B') INSERT INTO MEMBER VALUES('B') INSERT INTO MEMBER VALUES('B') INSERT INTO MEMBER VALUES('B') INSERT INTO MEMBER VALUES('C') INSERT INTO MEMBER VALUES('C') GO [edit]
2 2000 覯 豌襴 覦覯 #蠏朱蓋 願屋 覦覯 . 譴覲旧 覦讌 蟆曙 襷 蟆 譴.
--2000危 覯 DELETE FROM MEMBER WHERE IDX IN ( SELECT A.IDX as IDX FROM MEMBER A INNER JOIN ( SELECT MAX(IDX) AS IDX , NAME AS NAME , COUNT(*) AS CNT FROM MEMBER GROUP BY NAME HAVING COUNT(*) >1) B ON A.NAME = B.NAME AND A.IDX!=B.IDX )
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語 譯朱覦 碁朱れ 炎概蠍 覦 レ覓殊 覿豎れ 螳 讀覈 譴. 蠏碁れ 蟇磯 ろ 蠍磯ゼ 讌 蠍 覓語 豪Μ螳 . (B.C 觚) |