北大“數(shù)據(jù)庫原理”上機實踐題目總結(jié)(15)

字號:

INSERT INTO W193_ATHLETE VALUES('1001','李明','男','計算機系')
    INSERT INTO W193_ATHLETE VALUES('1002','張三','男','數(shù)學系')
    INSERT INTO W193_ATHLETE VALUES('1003','李四','男','計算機系')
    INSERT INTO W193_ATHLETE VALUES('1004','王二','男','物理系')
    INSERT INTO W193_ATHLETE VALUES('1005','李娜','女','心理系')
    INSERT INTO W193_ATHLETE VALUES('1006','孫麗','女','數(shù)學系')
    INSERT INTO W193_PROJECT VALUES('x001','男子五千米','一操場')
    INSERT INTO W193_PROJECT VALUES('x002','男子標槍','一操場')
    INSERT INTO W193_PROJECT VALUES('x003','男子跳遠','二操場')
    INSERT INTO W193_PROJECT VALUES('x004','女子跳高','二操場')
    INSERT INTO W193_PROJECT VALUES('x005','女子三千米','三操場')
    INSERT INTO W193_GRADE VALUES('1001','x001','6')
    INSERT INTO W193_GRADE VALUES('1001','x003','4')
    INSERT INTO W193_GRADE VALUES('1002','x001','4')
    INSERT INTO W193_GRADE VALUES('1002','x003','6')
    INSERT INTO W193_GRADE VALUES('1003','x001','2')
    INSERT INTO W193_GRADE VALUES('1004','x001','0')
    INSERT INTO W193_GRADE VALUES('1004','x003','2')
    INSERT INTO W193_GRADE VALUES('1005','x004','6')
    INSERT INTO W193_GRADE VALUES('1006','x004','4')
    athlete(a#,aname,sex,dno)
    project(p#,pname,address)
    grade(a#,p#,jf)
    delete from w193_grade
    where p#='x002'
    select * from w193_grade