Components of DBMS in Tamil (Database Course in Tamil) [Class - 12]

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Components of DBMS
The database management system can be divided into five major components, they are:
→ Hardware
→ Software
→ Data
→ Procedures
→ Database Access Language

DBMS Components: Hardware
When we say Hardware, we mean computer, hard disks, I/O channels for data, and any other physical component involved before any data is successfully stored into the memory.
When we run Oracle or MySQL on our personal computer, then our computer's Hard Disk, our Keyboard using which we type in all the commands, our computer's RAM, ROM all become a part of the DBMS hardware.

DBMS Components: Software
This is the main component, as this is the program that controls everything. The DBMS software is more like a wrapper around the physical database, which provides us with an easy-to-use interface to store, access and update data.
The DBMS software is capable of understanding the Database Access Language and interpret it into actual database commands to execute them on the DB.

DBMS Components: Data
Data is that resource, for which DBMS was designed. The motive behind the creation of DBMS was to store and utilise data.
In a typical Database, the user saved Data is present and metadata is stored.
Metadata is data about the data. This is information stored by the DBMS to better understand the data stored in it.
For example: When I store my Name in a database, the DBMS will store when the name was stored in the database, what is the size of the name, is it stored as related data to some other data, or is it independent, all this information is metadata.

DBMS Components: Procedures
Procedures refer to general instructions to use a database management system. This includes procedures to set up and installs a DBMS, To log in and logout of DBMS software, to manage databases, to take backups, generating reports, etc.

DBMS Components: Database Access Language
Database Access Language is a simple language designed to write commands to access, insert, update and delete data stored in any database.
A user can write commands in the Database Access Language and submit it to the DBMS for execution, which is then translated and executed by the DBMS.
User can create new databases, tables, insert data, fetch stored data, update data and delete the data using the access language.

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Video Credits: Abirami
Disclaimer: Thanks Abirami for contributing this video for this channel. I have paid Abirami for doing this video exclusively for this channel.

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