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What is Database an Introduction to it?

 




What is Database an Introduction to it? 

  

  

Do you know what a Database is and the type of database? You must know that there is so much demand for data and information in today's world. Data and Information In a short time, you can get it just by searching on the Internet. You just have to do so much work, you have to write your questions in Mobile Browser or in Google Search. 

  

  

Now all the Credit Cards are being made in Pakistan and India I mean almost crores of Credit cards have been made. Information of all these is also on the Internet. Banks and Online Reservation (Train, Flight, Hotel) also change a lot of data every day. 

  

  

Within a few seconds, you will get the answers to your questions. Big companies know about their Employees (Name, Salary, IDNo, Address). Information of children studying in college and schools like Name, roll no, Address, City, everything is available on the Internet nowadays. But where people are present on the Internet, fewer people know this thing. But you will get the answer soon. 

  

Transaction in the bank is done through a 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? 

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 a hard disk. 

  

  

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

  

  

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 and you can say this Excel Sheet is a database. 

  

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DB means whatever information and data are 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 6000 of their exams are over. 

  

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

  

When the result the exit date comes, this result is published. 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, which 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 the wrong data, then you have to edit the student details. After a few days you came to know that someone's data is wrong, then you will also have to delete it. If you want to search his name and address from a students' Roll no, then he says Access. 

  

 

 

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