Chapter 829 Can’t be written
Data files can be stripped off, and the database can exist independently of any system, including the database system itself, and can be directly copied and migrated very conveniently.
Complete relational management, two-dimensional table storage...
All of this seemed to open the eyes of Lao Maozi and Gaul Chicken.
As Gao Zhendong himself, who was spoiled by various databases, after all, databases were already at his fingertips when he traveled through time. Even Excel, which everyone has become accustomed to, is actually a simple database.
In this context, he may not realize how important the emergence of database systems is to the popularization of computers.
——This means that computers can enter the lives of ordinary people.
And Lao Maozi understands the benefits of this thing very well. Among other things, just one - statistics can be of great help.
Lao Maozi's statistical work has always been a bit haphazard. One of the most important starting points of their earliest Internet concept was to solve the problem of statistical work. However, the results were not very good, and in the end it was not really implemented in a systematic way.
Of course, the database developed by Gao Zhendong is not yet networked, but it at least provides a solid foundation for the unification and standardization of data storage management.
Several old men looked at each other: "Perfect! Maybe there will be better ones in the future, but now, it is perfect! It can even run on DJS-59."
In the process of browsing the description of the database system, Lao Maozi, including the Gauls, had already flashed through their minds countless usage scenarios of the database system. There were so many that they could only think of a rough idea of each one. After deep thought, another scene popped up in my head, pushing the previous thought far aside.
An old man rushed to the booth: "Davari, I want this! I want this!" He couldn't remember how much he wanted, but he wanted it anyway.
"Hello, comrade, please confirm the quantity you need and provide the serial number of the computer you want to install before delivery."
Our staff are very polite, and they will be very polite to everyone who is a big customer, and a big customer who has no business.
But his request made Lao Maozi and the Gauls behind him confused. Serial number? Why do I need a serial number?
Why else? Encrypt it.
Although encryption technology cannot prevent interested people from piracy of this software, it can at least slow down the process, especially when Gao Zhendong starts to use the technology of combining shell encryption and core code runtime dynamic decryption in the export version of the software.
As for the operating system, he has no intention of encrypting it. You can steal this thing at will.
For the operating system, Gao Zhendong only got a symbolic key. It doesn't matter how many keys are released, as long as he remembers one of them. It's a bit similar to the serial number "PQHKR-G4JFW-VTY3P-G4WQ2-88CTW" that everyone memorized later.
Even the encryption of this kind of application software on the database system is only to prevent gentlemen but not villains, and is only to control commercial applications at the government and large institutional levels to a certain extent.
For the early stages of promoting an ecology, piracy is not necessarily a bad thing.
Bill Gates: Well, you are absolutely right!
Of course, you can't say that openly.
"We need to know the status of the target system where the software is installed through the serial number, so that we can make targeted adjustments and configurations to the system to ensure the stability and efficiency of system operation."
This sounds reasonable, and the Gauls and Laozi both lamented that you were so considerate.
Different computers have different structures and instructions. Even from DJS-59 to DJS-61, there are three different forms. In their view, we can ensure that the same system is basically compatible on several computers. , is already a very remarkable thing.
As for some targeted adjustments, they are indeed necessary.
However, although Gao Zhendong doesn't care much about the copyright of computer software, there is one thing he cares about, and that is honor.
The honor of inventing the relational database, making it practical, and compiling the world's first relational database system must be firmly held in the hands of our people.
In order to ensure this, at the same time as this foreign trade commodity exhibition was being held, on the other side of the ocean, our old friend Mr. Cramer, the deputy editor-in-chief of Citi AIEE Journal, once again received a letter from an old classmate from the other side of the ocean.
This is a paper that I want to publish in an AIEE journal.
There is no way, regardless of the level of technology, but at this time a considerable part of the say in computer technology is still in the hands of the Western world led by Citigroup people. We must be good at making use of the system they have built.
Mr. Cramer attached great importance to letters from his old friends. Perhaps because of international relations issues, they don't communicate much, but every time the other party writes, it means the birth of a very promising technology, such as the C language that is now very popular in the computer field of Citi University, and other Several commercial companies are using general-purpose computer architectures imitated from Eastern public technologies.
I don’t know what it will be this time?
Mr. Kramer opened the paper with great anticipation.
For things like submitting articles, it is better to be more formal and use paper materials, because they can leave traces.
"Oh, God! What did I see? Did the God in charge of computers reincarnate in that land?"
——"IntroductionOfRelationalDatabaseManagementSystem (RDBMS)", ZhenDong.Gao.
No one in China is embarrassed to sign this article. I really can’t afford to lose face. I just assisted Gao Zhendong to complete some debugging and supplementary work, and signed the article on the establishment of the theory. That is simply taking my own credit. Academic reputation is a joke.
The literal translation of the name of the article is Introduction to Relational Database Management Systems.
Yes, what Gao Zhendong came up with is just a general introduction, without any details, with one purpose, to kill the origin of relational database in our hands.
For this purpose, "Introduction" is sufficient.
Mr. Cramer couldn't wait to read the paper, and kept talking to himself while reading.
"...What simple and powerful rules and models..." This is what makes Cramer most excited. Relational databases summarize complex data in the simplest structure, using simple two-dimensional tables to form and Storing complex data is the essence of the relational model used in relational databases.
There is no mistake in every song, one post, one content, one 6 one, one book, one book, take a look!
"...can provide very good data consistency, and can even achieve real-time effects...it's so important, so important!" Data consistency is the most important problem that needs to be solved during application operation. Don't look at this question. It sounds simple, but in fact it is not easy. Later generations of unstructured databases generally can only provide eventual consistency.
"...Atomicity, consistency, isolation, durability, ACID, it is really a summary of genius. These four words very clearly define the core elements of the database, genius, genius idea." Cramer was full of praise for the paper, Unable to control myself.
"...it is a very clever way to deal with data conflicts through locking and concurrency, and to ensure timely and correct data update..."
"Structured Query Language (SQL), stored procedures, triggers... My God, it can even be in the database to perform the necessary analysis and maintenance of the data..."
In Kramer's view, with this kind of database, all applications can store, manage and use data with high efficiency and low maintenance in a standard way of querying and displaying data, which is impossible by any other means.
"I don't know if they have actually implemented this kind of relational database. I think our companies, governments, and universities all need it." Kramer turned over the paper with great anticipation.
Given the length of the paper, it was impossible to implement it with source code, but he at least wanted to see where the Orientals had gone, whether they had completed the construction of the theory, or whether they had completely implemented it from the software level.
At this time, Citigroup and Lao Maozi began to compete fiercely. The two of them were more or less "lighthouses". Objectively speaking, they were indeed leading the way with the world's technology. It is against this background that with the rapid development of all walks of life, the need for proper handling of the resource "data" has become very prominent.
Although they currently do not systematically realize that "data" is also a resource, it is used as an intermediate process or outcome statistics.
But it was enough for the data to bother them.
Now, like Lao Maozi at the exhibition, Citi people also realized that they saw the dawn of a solution to this problem.
Although at this time, only one Citi person is aware of this.
But when he saw the end of the paper, he didn't see our implementation of RDBMS.
But an attachment at the back of the paper answered his question.
"We have completed the compilation and development based on the theory of relational database. Using DJS59 and subsequent models as the hardware environment, we have implemented a complete and usable RDBMS. However, the length of the paper is limited. Details of this software are written here. No less.”
"HolyShit!! You are so good at writing! Can't write? How will you know if you don't try? Once you write it, I can publish a supplement for you!"
Cramer was furious and deeply regretful. He knew that no matter what, it would be impossible for the other party to write the source code here, but at least it would be good to have more details. It's not like he had never done such a thing as a special supplement for the other party!
By the way, the first author of that paper was also called ZhenDong.Gao.
It seems that they have a great computer genius. As the deputy editor-in-chief of AIEE, Cramer is very concerned about the development of computers. He is not ignorant about DJS-61, C6108 and C6110. He is familiar with their The inventor naturally knew it well.
(End of chapter)