Introduction
A blockchain is a system in which a record of transactions is maintained across multiple computers called nodes that are linked in a peer-to-peer network.
What is Blockchain?
Blockchain is a decentralized ledger which keeps the information of transactions made through it.
The whole network keeps a version of blockchain in their systems.
Features of Blockchain
Cryptography
A blockchain is a chain of blocks which contain transaction information.
![]()
Block data contains a unique hash key which is like a fingerprint used to identify a block in its contents that links the blocks together a block will contain the hash of the previous block making the chain immutable as any change will require a new hash that will break the chain
![]()
Distributed Ledger
A central authority to manage the ledger blockchains uses a distributed peer-to-peer network. The is called a node and each node maintains a copy of the entire blockchain history as well as the rules that govern the blockchain.
![]()
Consensus
When a new transaction is a submitted it goes through a series of validation procedures to ensure it is a valid and authorized transaction prior to it being added to the blockchain through a process called mining or consensus. The transaction is validated against a set of rules and ultimately added to the chain with blockchain. Two parties are able to make a transaction without a trusted intermediary such as a bank broker or clearinghouse.
![]()
Let’s say X wants to send payment to Y without blockchain. X and Y use a number of intermediaries to facilitate the payment including clearing and settlement and to also ensure that X does not send that same payment to someone else known as double spending. With blockchain digital trust is built into the system removing the need for a trusted third party.
![]()
Blockchain technology is a distributed ledger that provides users with digital trust to perform transactions. Blockchain uses cryptography and consensus methods to create these immutable blocks. This technology has far-reaching impacts across industries. Now that you have the basics you’ll be able to join in on the conversations about this revolutionary technology.
What is Database?
A database is an organized collection of data generally stored and accessed electronically from a computer system, so that it can be easily accessed and managed. You can organize data into tables, rows, columns, and index it to make it easier to find relevant information. As an example student identities and company’s statistic data consists of graphics in order to transform data into useful information it must be organized in a meaningful way.
Example
![]()
There is key field such as student identity numbers and there are attributes which are also flow of the database while these are the entities.
![]()
What is DBMS?
Database Management System which we also call as DBMS is a group of programs that manipulate the database. DBMS provides an interface between user and database.
![]()
Ensure data is consistently organized and remain easy to access. There are two types of database software which is single user which means only one person can use the database at a time multiple users allow thousands of hundreds of people to access the same time.
![]()
There are more examples of databases MySQL, Oracle database, Microsoft SQL Server, and Sybase.
![]()
The DBMS provides functionality to programmers to create, read, update and delete in database.
![]()
The database administrators and also DBA is a group of professionals that use specialized software to store and organize the data. Their job scope include capacity planning, database design, migration, backup and data recovery, installation, configuration, performance monitoring, and security management.
![]()
Difference between Blockchain and Database
![]()
Summary
I hope you understood the difference between Blockchain and Database.