What is Database and its Model Types

Do you know what is Database and types of database model. You would know that there is so much demand for data and information in today's world. Data and Information In a short time, you can only find it by searching the Internet. That's all you have to do, you have to write your questions in Mobile Browser or in Google Search.

Within a few seconds, you will get the answers to your questions. Major companies know their Employees (Name, Salary, IDno, Address). Information of children studying in college and schools such as Name, Roll no, Address, City, Everything is available in Internet nowadays. But where people are present in the Internet, less people know this thing. But you will get the answer soon.

Now all the Aadhar Cards are being made in India, I mean almost crores of Adharcard have been made. Information about all these are also in the Internet. Banks and Online Reservation (Train, Flight, Hotel) in these also change a lot of data everyday.

Transaction in the bank is done through computer and mobile. There also remains data, but Transaction also happens to millions of people. Now you have another question in your mind. Where is the details store of all these transactions.

Sometimes you must be wondering where all this data and information lives. Is there an AC space in the Internet? Or does a man sit down and write? The answer to all these is Database. Also know that Internet is nothing without a database. So let's know what a database is today.

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Database (DB), this information is the federation of information, where the related information is collected and kept. Information is kept in the database by being organized (organized).

Organized means to keep the sentence as you put the books on the table, similarly the information and data are kept in the database. To store information, some software is used. The best example is MS-Excel. Here all the data is kept in digital memory devices such as hard disk.

Information is kept in the database in such a way that you can easily access the data and manipulate it.

Let's understand with an example, "An MS-Excel sheet where you have details of 100 students." Details such as Roll NO, name, address, name of the city, father's name, date of birth. Here we and you can say this Excel Sheet is a database.

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DB means whatever information and data is in the DataBase, you can access it whenever you want. Now let's understand what Access means. There is a university, where there are many students, about 5000 of their exams are over.

Now their results are uploaded in the database through computer, it can also be that the official website of the university. Then it is uploaded there too. Now it has become the database of Students Result.

This result is published when the result of exit date comes. Then students start putting their Roll no and see the result. This process is called Accessing Database.

There are many such databases such as Google's, Company's, Government's database, where they store their information.

Database management system

It is a software system through which a user creates, defines, maintains and controls the database. DBMS is a collection of programs that are used to maintain the Database (DB).

Now let's understand the meaning of Maintain “In this you can do all these things like inserting data into DB, Edit, Delete, Access and Update.

You know what Database Management System DBMS is. Again let's understand, DBMS is a software package. Through this software, you can create a database. Just like you created a database named Student, now you have to add the details of the students to it.

If you inadvertently give incorrect data, then you have to edit Student details. After a few days you came to know that someone's data is wrong, then you will also have to delete. If you want to search his name and address from a student's Roll no, then he says Access.

Now you must understand what DBMS does. Take this example, you can also put it in a company, the same thing happens there.