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Chapter 1 ocp exam guide and ocp exam Guide Database storage structure: Physical database storage structure: Three types of files are required: ControlFile: multiplexing the controfile multiplexing Control File, pointing to other important files, storing serial numbers and timestamps

tactics, the key is to find some useful internal sprint materials and simulation materials for training. It is also a great benefit to participate in lectures and sprint workshops. Of course, it is also necessary to adjust the mentality of the exam. Be confident and not think too much about the negative thoughts such as what to do. In the sprint stage, pay attention to reasonable arrangements for the time ratio of each subject, and make the final

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various information required, In the basic knowledge of the candidates prepared including the Guide, the examination application form, basic questions and answers, as well as test hot questions and so on, for the examination to understand the process and the contents of the examination provided a detailed preparation information. Figure 2 Local guide In addition to the basic knowledge of the nati

hold oneself identity document, the admission ticket to receive the qualification certificate. For special reasons can not personally handle the certificate of the candidates, can entrust others agent. The agent must carry the original ID card and the client's original certificate, ID card copy. The certificate of the personnel registered by the Unit shall be the certificate of the personnel of the Unit by the person holding the letter of recommendation. For candidates who are not in the field,

S (Sno,sname,sdd,sage)Sno,sname,sdd,sageEach representative of the school number, learningMember's name, affiliation, student's ageC (Cno,cname)Cno,cnameRepresent the course number, the course name, respectivelySC (Sno,cno,score)Sno,cno,scoreRepresenting the school number,of the ElectiveCourse number, learning scoreThe data for the three tables are as follows:Problem:Use standard SQL nested statements to query the name and affiliation of the student taking a