摘要：
1)行转列表结构:STUDENTcreate table STUDENT( USER_NAME VARCHAR2(20), COURSE VARCHAR2(20), SCORE FLOAT)初始化数据:INSERT INTO STUDENT(USER_NAME,COURSE,SCORE)VALUES('zhangyue','Enlish',85);INSERT INTO STUDENT(USER_NAME,COURSE,SCORE)VALUES('zhangyue','Math',75);INSERT INTO STUDENT(U 阅读全文