(7) INSERT INTO C VALUES('C8'£¬'ÐÅϢϵͳ¸ÅÂÛ'£¬'ËïÁ¦')
(8) INSERT INTO SC(SNO,CNO,SCORE) SELECT SNO,'C8',60 FROM S (9) UPDATE SC
SET SCORE=0
WHERE CNO='C8' AND SNO IN
(SELECT SNO FROM S
WHERE SEX= 'ÄÐ')
»ò
UPDATE SC SET SCORE=0
WHERE CNO='C8' AND 'ÄÐ'=
(SELECT SEX FROM S
WHERE SNO=SC.SNO)
»ò
-- ×îºÃΪÈçϱíʾ
UPDATE SC SET SCORE=0 WHERE SNO IN
(SELECT SNO FROM S
WHERE SEX= 'ÄÐ') AND CNO IN
(SELECT CNO FROM C
WHERE CN= 'Êý¾Ý¿â')
»ò
UPDATE SC SET SCORE=0 WHERE 'ÄÐ'=
(SELECT SEX FROM S
WHERE SNO=SC.SNO) AND 'Êý¾Ý¿â'=
(SELECT CN FROM C
WHERE CNO=SC.CNO)
49
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