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| create table kecheng ( id NUMBER, name VARCHAR2(20), course VARCHAR2(20), score NUMBER ); insert into kecheng (id, name, course, score) values (1, '张三', '语文', 67); insert into kecheng (id, name, course, score) values (1, '张三', '数学', 76); insert into kecheng (id, name, course, score) values (1, '张三', '英语', 43); insert into kecheng (id, name, course, score) values (1, '张三', '历史', 56); insert into kecheng (id, name, course, score) values (1, '张三', '化学', 11); insert into kecheng (id, name, course, score) values (2, '李四', '语文', 54); insert into kecheng (id, name, course, score) values (2, '李四', '数学', 81); insert into kecheng (id, name, course, score) values (2, '李四', '英语', 64); insert into kecheng (id, name, course, score) values (2, '李四', '历史', 93); insert into kecheng (id, name, course, score) values (2, '李四', '化学', 27); insert into kecheng (id, name, course, score) values (3, '王五', '语文', 24); insert into kecheng (id, name, course, score) values (3, '王五', '数学', 25); insert into kecheng (id, name, course, score) values (3, '王五', '英语', 8); insert into kecheng (id, name, course, score) values (3, '王五', '历史', 45); insert into kecheng (id, name, course, score) values (3, '王五', '化学', 1); commit;
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