Today we will see what is the difference between the blockchain and a traditional database. To understand the difference let us know about their structure first and then go through other important points.
What is a Traditional Blockchain?
A traditional database running on the world wide web uses client-server network architecture. The data is stored in a centralized server, wherein a user (client ) with the permission associated with thier accounts can modify data.
A designated authority has controls the database and before providing the access to database, the authority authenticates the credentials of the client. Every time the client accesses the database using their computer, they will get a updated version of the database.
The authority lies with the designated authority and responsible for administration of the database, if by any means the security of the authority is compromised, the data can be altered, or even deleted.
What is a Blockchain?
Blockchain consists of several decentralized nodes. In here every user or client or node participates in administration. All nodes verify new additions to the blockchain, and are capable of entering new data into the database.
Each participant maintains, calculates and updates new entries into the database. All the nodes work hard to achieve a particular goal that is to arrive at the same conclusions as other nodes, providing in-built security for the network and making it difficult to tamper with.
The result of this difference in structure is that, blockchain is well-suited as a system to record data for certain functions, whereas, centralised database is useful for other functions.
The Important Points of Difference
1. Transparency and Intergrity
Transparency : All the users or clients can see how the blockchain has be added with time.
Intergrity : The users can be sure that the data they are redeeming is uncorupted and unaltered from the time it was recorded.
The key area of blockchain is ‘public verification’ which is enabled due to intergrity and transparency function. This helps the users or clients to check all the details on the blocks. They are fully aware about what is going on in the blockchain.
The traditional database on the contrary provides details to users or clients only after their credentials are authenticated. The authority provides only the required information and not everything.
Here, performance refers to the time taken by blockchain or database to complete a task effeciently or completing a task without consuming much time.
Blockchains are considered slow databases, even though they are systems of records and are ideal as transaction platform. We know that the blockchain is improving day after day, but the nature of the technology requires sacrifice in terms of speed.
Blockchain employes the distributed networks due to which they do not share compound processing power, they service the network independently, and then compare their work with other networks until the conensus says that something happened.
Its completely different when it comes to the traditional database. The database has been evolving over the period of time and has been in existense for decades now. There has been increase in performance in lock-step with Moore’s Law formula that has come to define innovation in the digital era.
3. CRUD vs Read & Write Operations
CRUD stands for Create, Read, Update, and Delete.
The structure of the blockchain is in such a way that you can only add more data to it in the form of additional blocks. The previously added dat is stored in the blockchain permanently and it cannot be altered or tampered. The operations associated with blockchain are:
Read operation : It is for query and retrieving the data from the blockchain.
Write oprations : It adds more data to the blockchain.
As we read in the beginning the information in the database can be modified. After accessing the database the client can perform four functions namely, Create, Read, Update, and Delete.
4. Decentralized Control
Decentralized control means distributing the control to everyone and there is no central authority. There is no authority that will store all the data. The data will be with everyone.
Blockchains allow different parties that do not trust each other to share information without requiring a central administrator. Transactions are processed by a network of users acting as a consensus mechanism so that everyone is creating the same shared system of record simultaneously.
The value of decentralized control is that it eliminates the risks of centralized control. With a centralized database, anybody with sufficient access to that system can destroy or corrupt the data within. This makes users dependent on the administrators.
Blockchain and Traditional Database have their own functions and speciality. There are differences in both the type of databases and there’s no pressure of using only the traditional database or blockchain. Whichever of the database is suitable for your functions should be adopted.