B.SELECTsno,snameFROMstudentWHEREsnameLIKE’_t%’;
C.SELECTsno,snameFROMstudentWHEREsname=’%t_’;
D.SELECTsno,snameFROMstudentWHEREsnameLIKE’%t_’;
B.SELECTsno,snameFROMstudentWHEREsnameLIKE’_t%’;
C.SELECTsno,snameFROMstudentWHEREsname=’%t_’;
D.SELECTsno,snameFROMstudentWHEREsnameLIKE’%t_’;
B.smajor=NULL
C.smajor=0
D.smajor=’’
A. right(地址,4)=’8号’
B. right(’地址’,2)=’8号’
C. right(’地址’,4)=’8号’
D. right(地址,2)=’8号&rsquo
A、update students set Grade=Grade+10 where SID=1
B、update * set Grade=Grade+10
C、update * from stedents set Grade=Grade+10
D、update students set Grade=Grade+10
A.b.cno
B.b.sno
C.SELECTasno,sname,cno,cjFROMscaCROSSJOINcoursesbONa.cno
D.SELECTa.sno,sname,cno,cjFROMstudentsaJOINscbONa.sno
E.SELECTa.sno,sname,cno,cjFROMstudentsaCROSSJOINscbONa.sno
F.SELECTa.sno,sname,cno,cjFROMscaJOINsoursesbONa.cno
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