Introduction to databases
How Databases begin
With the beginning of stone age people try to memorize things. They want to remember their special memories and store them to their next generation. They started draw things in their caves those arts are keep their memory for thousands of years. those are the first databases that people ever used.
After stone age humans start to gather their properties. they want to memorize how many animals they have, how many days they spending how long they travel per day like that things and they need to store that data not in their caves, some thing that can travel with them.
So they started writing some kind of symbols ,marks in their Sticks, piece of woods, clay slabs…
With the beginning civilization people start to write their history. Start businesses then they need to categorize their data to a special patterns for understanding easy and other things. that's how start databases for commercial purposes.
Before databases existed, everything had to be recorded on paper. We had lists, journals, ledgers and endless archives containing hundreds of thousands or even millions of records contained in filing cabinets. When it was necessary to access one of these records, finding and physically obtaining the record was a slow and laborious task. There were often problems ranging from misplaced records to fires that wiped out entire archives and destroyed the history of societies, organizations and governments. There were also security problems because physical access was often easy to gain.
Real life Databases
Databases are obviously used in business applications and financial transactions; however, databases are not just used for business applications. Your grocery store, bank, video rental store and favorite clothing store all use databases to keep track of customer, inventory, employee and accounting information. Databases allow for data to be stored quickly and easily and are used in many aspects of your daily life. even people who do not own a computer or mobile phone interact with them regularly. When we take out money from an ATM, check our bank balance, shop online, view social media or perform almost any digital interaction, we are accessing a database. Databases are essentially software applications. A database management system (DBMS) is the name of the software that provides data to other applications, allowing all the digital information systems that we interact with today. Often, a DBMS is referred to as a database. There are many vendors and software solutions with different licenses and uses. Data is shared with a variety of standards, but primarily they all serve the same purpose, which is to provide applications with data. The applications then process the data and turn it into something useful for the users: information.
The move from paper to computer databases was a huge leap in information management and storage. Databases are much more efficient than paper storage in that they take up less space, are easily accessed by multiple users at once and can be transferred long distances with virtually no delay. The use of databases allowed for the rise of corporate infrastructure, credit card processing, email and the Internet. Databases allow for data to be shared across the world instead of being housed in one location on a physical piece of paper.
Can we live without Databases
Imagine you are come out your home and you took a bus to your destination but the conductor he didn’t know how much rupees to your ticket, because he doesn’t have any note or ticket machine. because note is a data base that hold bus ticket fees, also ticket machine.
when we buying a some kind of product how that product price calculated. from the material to final product every information will gather in to a database and they calculate price for it. In modern world every technology every services and every thing running on databases.
Every decision, steps that get by people for devolving new technology, companies, industry they comes with data bases.
So we cannot imagine world without databases.