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<?xml version="1.0" encoding="UTF-8"?>
<mdx>
<sets>
<set>
<name>[promomonths] </name>
&n ......
Student(S#,Sname,Sage,Ssex) ѧÉú±í
Course(C#,Cname,T#) ¿Î³Ì±í
SC(S#,C#,score) ³É¼¨±í
Teacher(T#,Tname) ½Ìʦ±í
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select a.S# from (select s#,score from SC where C#='001') a,(select s#,score
fr ......
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2
3 SELECT TOP n-m+1 *
4 from Table
5 WHERE (id NOT IN (SELECT TOP m-1 id from Table ))
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DROP TABLE t_change_lc;
CREATE TABLE t_change_lc (card_code VARCHAR2(3), q NUMBER, bal NUMBER);
INSERT INTO t_change_lc
SELECT '001' card_code, ROWNUM q, trunc(dbms_random.VALUE * 100) bal from dual CONNECT BY ROWNUM <= 4
UNION
SELECT '002' card_code, ROWNUM q, trunc(d ......
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