http://www.oradb.net/book/M03989.rar
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2. http://leon83.com/download/list.jsp?ct=book%2FORACLE&image=false
3. http://superexam.myetang.com/ocp/index.html
4. http://soft.269.net/SoftWareList.asp?ClasstreePos=24
5. http://www.oradb.net/book.htm
6. http://www.ebooksou.com/search_leibie.asp?lei=4-2&word=Oracle
7. http://www.eng.stu.edu.cn/ebook/type/database.asp?did=0203