[IDC reconstruction] Summary: IDC Reconstruction

[IDC reconstruction] Summary: IDC Reconstruction

The paid Personal Edition of the IDC room is a stumbling block. Here we will not talk much about what we have learned, but we can only understand the difficulties we have encountered. Summarize the problems, shortcomings, and lessons learned in the reconstruction process.

I. Acceptance Problems

On that day, I had to wait for the completion and function implementation. I was anxious to ask master to give it a look. As a result, Master had something to do, so I asked someone to give myself a look at what was wrong. Xin Kui has something to do with Master. Many of the mistakes are caused by incomplete consideration, that is, he is not doing well in serving the people.

Here, I will mainly summarize some points of guidance from the master and the problems I found during the acceptance.

1. For more information about SQL injection, see

2. Fields in the datagridview directly display fields in the database, without considering whether users can understand the fields at this time.

3. Register and consider the issue from your own perspective. Not from the user's perspective

4. The relationship between the Code and the document is not well understood, and the two are consistent.

5. From the perspective of Project extension, the plan is not reasonable. GTD's attitude is not reflected.

Ii. Gains

After two data room charging systems, I have some opinions on the functions and implementation methods of the system. This is also very useful for the cooperative edition.

At the beginning, I was thinking about how to do it according to my previous ideas. Later I learned a new idea to implement it. For details, see [IDC reconstruction] weekly statement settlement

Previously, I mentioned triggers, stored procedures, and views in a zombie's video. I remember that I remembered the simple words and found it very difficult.ActuallyNot as hard as imagined. For more information about the usage, see [Data Center reconstruction] SQL storage process!

There will always be a small error at each stage to illustrate this process. It is precisely because of these beautiful mistakes that we have laid the foundation for going down.

In fact, the biggest feeling is that when I first wrote a blog, I thought it was quite good because I wrote it carefully. When the reconstruction was completed, I took a look back and suddenly felt that what was written? A very simple method call was written in a blog, and there was an impulse to delete it. Think about it. Does this change mean our progress and growth?

Data center management summary

The end of this period has arrived. as an employee of the school, the computer room and teaching work of the school are summarized as follows in strict accordance with the requirements of the school leaders: in the maintenance and management of the school's computer room, I am actively investing, working hard, and working hard. All the computers first use their own portable computer hair dryers, the system removes dust from the school computer, and then installs and debugs the demo computer. It clones the hard disk of the whole machine using the Ghost 11.5 high version in MaxDOS. The software is advanced and powerful, fixed some bad logic channels of hard disks, used test parts for computers that are not bright or can not be started, and debugged the contact functions of the Main Board, such as moving the CPU, memory plug-in, and mobile, dust Removal and discharge methods have restored the use of a large number of computers, there are only 7 computers in 41 computer rooms that cannot be repaired due to damaged spare parts. This is a phenomenon of aging and decommission. The hard disks of the three computers have physical bad channels, which cannot be used during use. They will crash during use. After restart, the hard disk cannot be found and cannot be started. The resistance of the three computers on the motherboard is unstable. As a result, when the motherboard is turned over to the BIOS, it cannot be turned over and cannot enter the operating system. It is aging and damaged. We recommend that you replace it, there are two computer hosts, the power supply is broken, power is not powered, except dust, also can not, after the check, the original power: one is the power resistance burned drum, the other is that the capacitor of the power supply is broken down, and the rectification block is also faulty. It is difficult to solve the problem, and the related electronic components are not easy to purchase. In order to ensure the safety of computer spare parts and ensure stable power supply, to avoid burning out computer spare parts, we recommend that you purchase a new power supply. Computer Room maintenance achievements: As a teacher, I am a senior teacher. During the maintenance process of my computer room, I use the network to constantly learn and update myself. I often do not forget to charge and improve, in the face of computer virus-infected networks, students in the school need to access the Internet on Saturday and Sunday. To ensure that students can access the Internet for information and entertainment, I worked hard to overcome the latest computer restoration Protection Technology: "Happy network management, super Protection", and then applied to the school computer room, produced good results in practice, ensuring that students access the Internet every Saturday and Sunday, it can generate electricity and network fees of more than 200 RMB for school card planning, and manage the use of computers for students during normal teaching, which improves the computer usage and Failover rate of the school, the service was well performed for the majority of students and class administrators, and the logistics was stabilized. The multimedia network system installed in teaching can implement a single machine to control multiple machines and conduct unified teaching demonstration. It has achieved the advanced multimedia teaching demonstration in the computer room of the University and entered the advanced scientific teaching mode, teaching is not affected by Internet access. Personal works: Based on my work experience and ideas I have found in my work practice and experience, I have written a learning paper entitled "computer room construction feasibility plan for General Education Vocational Education", which has been published on the Internet, in addition, we actively listened to the lectures from teachers and colleagues, accumulated teaching experience, and obtained the true meaning of a good lesson: "The blackboard should be standardized and detailed, and the voice of the class should be loud." In terms of teaching and teaching: When the half-term is approaching, the school leaders rush to deliver the job, that is, they must ensure that the secondary school students take the computer Qualification Certificate Examination of the Leshan Labor Bureau vocational qualification station and pass the examination smoothly. The task is very heavy and difficult. The secondary school students do not love learning. The basics are too bad. After a year of computer learning, some students still use Pinyin for typing. In the face of such a situation, as a teacher, I patiently explained the problem type of the career appraisal station last year to the students, in the afternoon, in the morning, in the evening, and in the computer room, the students practiced for three days, and finally the students passed the test smoothly. The teaching tasks of this semester have been completed successfully according to the syllabus requirements. The half-end exam has been reviewed, the overall score summary, and the analysis of the written exam have been completed as required by the school. During the division of high school scores, the school assigned to the Teaching and Research Section of Leshan teachers' secondary education school, not only accurately counting all the scores of the high school students in the school, but also according to the requirements of the teaching and research staff of the Teaching and Research Section, help count the scores of similar high school students.

Data center management summary

The end of this period has arrived. as an employee of the school, the computer room and teaching work of the school are summarized as follows in strict accordance with the requirements of the school leaders:

In the maintenance and management of the school's computer room, I am actively investing, working hard, and working hard. All the computers first use their own portable computer hair dryers, the system removes dust from the school computer, and then installs and debugs the demo computer. It clones the hard disk of the whole machine using the Ghost 11.5 high version in MaxDOS. The software is advanced and powerful, fixed some bad logic channels of hard disks, used test parts for computers that are not bright or can not be started, and debugged the contact functions of the Main Board, such as moving the CPU, memory plug-in, and mobile, dust Removal and discharge methods have restored the use of a large number of computers, there are only 7 computers in 41 computer rooms that cannot be repaired due to damaged spare parts. This is a phenomenon of aging and decommission. The hard disks of the three computers have physical bad channels, which cannot be used during use. They will crash during use. After restart, the hard disk cannot be found and cannot be started. The resistance of the three computers on the motherboard is unstable. As a result, when the motherboard is turned over to the BIOS, it cannot be turned over and cannot enter the operating system. It is aging and damaged. We recommend that you replace it, there are two computer hosts, the power supply is broken, power is not powered, except dust, also can not, after the check, the original power: one is the power resistance burned drum, the other is that the capacitor of the power supply is broken down, and the rectification block is also faulty. It is difficult to solve the problem, and the related electronic components are not easy to purchase. In order to ensure the safety of computer spare parts and ensure stable power supply, to avoid burning out computer spare parts, we recommend that you purchase a new power supply.

Computer Room repair achievements:

As a teacher, I am a senior engineer. During the maintenance process of my computer room, I constantly learn to update myself through the network. I often don't forget to improve the charging performance. In the face of computer viruses, on Saturday and Sunday, students need to access the Internet. To ensure that students can access the Internet for information and entertainment, I worked hard to solve the latest computer restoration Protection Technology: "Happy network management, super protection ", then it was applied to the school's computer room. In practice, it has produced good results, ensuring that students access the Internet every Saturday and Sunday. It can generate an electricity network fee of more than 200 RMB for school card planning, it also manages the machine operations for students in the normal teaching process, improves the computer usage and renewal rate of the school, and provides services for the majority of students and class administrators, and reinforces the logistics. The multimedia network system installed in teaching can implement a single machine to control multiple machines and conduct unified teaching demonstration. It has achieved the advanced multimedia teaching demonstration in the computer room of the University and entered the advanced scientific teaching mode, teaching is not affected by Internet access.

Personal works:

Based on the experiences and ideas I have found in my work practice and experience, I have written a learning paper entitled "computer room construction feasibility plan for General Education Vocational Education", which has been published on the Internet, in addition, we actively listened to the lectures from teachers and colleagues, accumulated teaching experience, and obtained the true meaning of a good lesson: "The blackboard should be standardized and detailed, and the voice of the class should be loud."

Teaching and teaching:
When the half-term approaching, the school leaders rushed to deliver the job, that is, to ensure that the technical secondary school students, to participate in the Leshan City Labor Bureau vocational qualification station computer Qualification Certificate Examination, successful pass. The task is very heavy and difficult. The secondary school students do not love learning. The basics are too bad. After a year of computer learning, some students still use Pinyin for typing. In the face of such a situation, as a teacher, I patiently explained the problem type of the career appraisal station last year to the students, in the afternoon, in the morning, in the evening, and in the computer room, the students practiced for three days, and finally the students passed the test smoothly. The teaching tasks of this semester have been completed successfully according to the syllabus requirements. The half-end exam has been reviewed, the overall score summary, and the analysis of the written exam have been completed as required by the school. During the division of high school scores, the school assigned to the Teaching and Research Section of Leshan teachers' secondary education school, not only accurately counting all the scores of the high school students in the school, but also according to the requirements of the teaching and research staff of the Teaching and Research Section, help count the scores of similar high school students.

Finally, by the way, let's talk about the work objectives of the computer room next semester. The new computer room system has been introduced, requiring the Principal Yu to agree to issue more information to the computer room classes so that after the students start school, group ...... remaining full text>