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The difference between blockchain database and traditional datab
Publish: 2021-05-02 05:46:00
1. What's the difference between the Internet of things, blockchain and big data
in the near future, the number of devices in the Internet of things will explode, which may be hundreds of billions or trillions. If such a huge network is still managed in a centralized networking mode, the infrastructure investment and maintenance of the data center should be incalculable
in essence, big data belongs to a small branch of database, so this problem is attributed to the relationship between big data and database. Database is a very old research field in software, Internet and it. From the initial file system to ER model, to the three achievements of traditional database, which are known to all, relational model, transaction processing and query optimization, to the rise of NoSQL database after the popularity of Internet, database technology is constantly developing and changing, Then it also includes semi-structured data processing represented by XML and unstructured data processing such as text and voice
it seems that the relationship between blockchain and database is actually such a relationship. From the evolution process of database technology, we can find that it always comes from how to meet new business requirements and then create new data processing technologies. For example, from the beginning of the file system, why do we need the ER model? It is because with the development of the financial instry, people have further requirements for these fast accounting, high concurrency data writing and access, which leads to the emergence and rapid development of the entity relationship model. Why did NoSQL database appear later? It is because the rapid development of the Internet puts forward higher requirements for updating the database, so in essence we think that the whole Internet is a big database
things are always developing. Of course, after we solve the problem of massive real-time data processing on the Internet through NoSQL database and cloud storage, the next problem must come, that is, how to solve the authenticity and effectiveness of data in a large-scale way
for example, it may be related to our diet, from the problem of food and clothing at the beginning, to the problem of nutrition structure, and then to the problem of food safety that everyone is concerned about. The development of database is the same. When we can solve these problems of data storage and data access through ER entity relationship model and NoSQL database, Next, we need to care about and solve the problem of authenticity and effectiveness
so at this stage, these technologies, represented by blockchain, must be a new starting point and new requirements for the authenticity, validity, unforgeability and tamper resistance of data compared with the current database. We can clearly feel that the trend of database and blockchain integration is actually very close and irresistible, just like the movie just mentioned, the procers of content begin to develop in the direction of virtual reality and augmented reality; From the perspective of database, blockchain is a new way of data organization. We believe that big data and blockchain are integrated.
in the near future, the number of devices in the Internet of things will explode, which may be hundreds of billions or trillions. If such a huge network is still managed in a centralized networking mode, the infrastructure investment and maintenance of the data center should be incalculable
in essence, big data belongs to a small branch of database, so this problem is attributed to the relationship between big data and database. Database is a very old research field in software, Internet and it. From the initial file system to ER model, to the three achievements of traditional database, which are known to all, relational model, transaction processing and query optimization, to the rise of NoSQL database after the popularity of Internet, database technology is constantly developing and changing, Then it also includes semi-structured data processing represented by XML and unstructured data processing such as text and voice
it seems that the relationship between blockchain and database is actually such a relationship. From the evolution process of database technology, we can find that it always comes from how to meet new business requirements and then create new data processing technologies. For example, from the beginning of the file system, why do we need the ER model? It is because with the development of the financial instry, people have further requirements for these fast accounting, high concurrency data writing and access, which leads to the emergence and rapid development of the entity relationship model. Why did NoSQL database appear later? It is because the rapid development of the Internet puts forward higher requirements for updating the database, so in essence we think that the whole Internet is a big database
things are always developing. Of course, after we solve the problem of massive real-time data processing on the Internet through NoSQL database and cloud storage, the next problem must come, that is, how to solve the authenticity and effectiveness of data in a large-scale way
for example, it may be related to our diet, from the problem of food and clothing at the beginning, to the problem of nutrition structure, and then to the problem of food safety that everyone is concerned about. The development of database is the same. When we can solve these problems of data storage and data access through ER entity relationship model and NoSQL database, Next, we need to care about and solve the problem of authenticity and effectiveness
so at this stage, these technologies, represented by blockchain, must be a new starting point and new requirements for the authenticity, validity, unforgeability and tamper resistance of data compared with the current database. We can clearly feel that the trend of database and blockchain integration is actually very close and irresistible, just like the movie just mentioned, the procers of content begin to develop in the direction of virtual reality and augmented reality; From the perspective of database, blockchain is a new way of data organization. We believe that big data and blockchain are integrated.
2. That's ten times the survival rate he set. If you lose one, you'll get ten. It's set in the game
3. No
bitcoin trading platform has many running platforms, such as mtgox in Japan, bitcoin in China and so on
therefore, investors need to choose a reliable bitcoin trading platform. The reference factors are: 1. The longer the running time, the better; 2. The bigger the instry reputation, the better; 3. The larger the team size, the better; 4. Being able to visit<
it is suggested that China choose "fire coin net", which is cooperated by Wukou School of finance of Tsinghua University. Sequoia Capital has invested 10 million US dollars; The choice of coinbase in foreign countries is an important choice for Silicon Valley banks to invest.
bitcoin trading platform has many running platforms, such as mtgox in Japan, bitcoin in China and so on
therefore, investors need to choose a reliable bitcoin trading platform. The reference factors are: 1. The longer the running time, the better; 2. The bigger the instry reputation, the better; 3. The larger the team size, the better; 4. Being able to visit<
it is suggested that China choose "fire coin net", which is cooperated by Wukou School of finance of Tsinghua University. Sequoia Capital has invested 10 million US dollars; The choice of coinbase in foreign countries is an important choice for Silicon Valley banks to invest.
4.
College Students' innovation and entrepreneurship ideas include printing and ing services, leisure errands, school leisure food stores, college students' Tutoring instry, and online stores 1. Printing and ing service in fact, many schools have printing and ing stores. It seems that the market is saturated, but in fact, there is still a lot of space. Especially in the graation season, students have to print various reports, resumes and other information. The key to starting a business is to find the right location 5. Setting up shop on the Internet the sales volume of health care instry on the Internet is even more considerable than that of books and music. Buying daily necessities on the Internet is often favored by people because it can avoid the curious eyes of people on the street and face the situation of salesmen extended materials precautions 1, risk perception the risk perception of entrepreneurs depends on the entrepreneur's self-confidence, independent of plan, desire for control and other factors. Only those who have the courage to take risks can meet the challenges, invest their time, energy and financial resources and bear the possible losses 2. Alertness is also called entrepreneur early warning, which is used to reflect the ability of entrepreneurs to find out whether market opportunities exist or whether they have value. When one person has insight into the value of a resource while others don't, the warning has already appeared
5. The way to distinguish Chongqing jinwowo analysis is as follows:
distinguish blockchain from ordinary database;, The main point is that the specific rules for putting data into the database are different. In other words, it can not conflict with other data already in the database. It is only added, immutable, and the data itself is locked to an owner (which can be owned). It is replicable and available. Finally, everyone agrees that the state of data in a decentralized database is compliant.
distinguish blockchain from ordinary database;, The main point is that the specific rules for putting data into the database are different. In other words, it can not conflict with other data already in the database. It is only added, immutable, and the data itself is locked to an owner (which can be owned). It is replicable and available. Finally, everyone agrees that the state of data in a decentralized database is compliant.
6. Blockchain is actually a distributed database. The contents stored in each block are equivalent to the tables in the database. The differences between blockchain and traditional distributed database are as follows:
(1) participants can join freely without permission; (2) the contents of the database are open to all participants; (3) all the previous transaction data, that is, the logs of the database, will never be deleted; (4) highly rendant and reliable; (5) inefficient, requiring multiple confirmations, in order to think that the transaction is really completed
in the future, jinwowo will be based on the instrial layout, We will apply blockchain, an emerging technology, to all sectors of the society to promote big data to serve the society better and more efficiently.
(1) participants can join freely without permission; (2) the contents of the database are open to all participants; (3) all the previous transaction data, that is, the logs of the database, will never be deleted; (4) highly rendant and reliable; (5) inefficient, requiring multiple confirmations, in order to think that the transaction is really completed
in the future, jinwowo will be based on the instrial layout, We will apply blockchain, an emerging technology, to all sectors of the society to promote big data to serve the society better and more efficiently.
7. The essential differences between database and data warehouse are as follows:
1. Logical level / conceptual level: database and data warehouse are in fact the same or very similar. They organize and manage data based on a certain data model through a certain database software. However, databases usually pay more attention to business transaction processing (OLTP), while data warehouses pay more attention to data analysis level (OLAP), resulting in great differences in database models
2. Database usually pursues transaction speed, transaction integrity, data consistency, etc., and mainly follows normal model (1NF, 2NF, 3NF, etc.) in database model, so as to rece data rendancy as much as possible and ensure reference integrity; Data warehouse emphasizes the efficiency of data analysis, the speed of complex query, and the correlation analysis between data, so in the database model, data warehouse likes to use multidimensional model, so as to improve the efficiency of data analysis
3. Proct implementation level: there are some differences between database and data warehouse software. Database usually uses row storage, such as SAP ASE, Oracle and Microsoft SQL server, while data warehouse tends to use column storage, such as SAP IQ and SAP Hana.
1. Logical level / conceptual level: database and data warehouse are in fact the same or very similar. They organize and manage data based on a certain data model through a certain database software. However, databases usually pay more attention to business transaction processing (OLTP), while data warehouses pay more attention to data analysis level (OLAP), resulting in great differences in database models
2. Database usually pursues transaction speed, transaction integrity, data consistency, etc., and mainly follows normal model (1NF, 2NF, 3NF, etc.) in database model, so as to rece data rendancy as much as possible and ensure reference integrity; Data warehouse emphasizes the efficiency of data analysis, the speed of complex query, and the correlation analysis between data, so in the database model, data warehouse likes to use multidimensional model, so as to improve the efficiency of data analysis
3. Proct implementation level: there are some differences between database and data warehouse software. Database usually uses row storage, such as SAP ASE, Oracle and Microsoft SQL server, while data warehouse tends to use column storage, such as SAP IQ and SAP Hana.
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