What is the Full Form of SQL?

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Updated on Aug 31, 2023 10:32 IST

In this article, we will discuss what is the full form of SQL, its components, and some of the basic concepts and terminologies. Later in the article, we will discuss what are the advantages of using SQL.

What is the full form of SQL, and What is it?

SQL full form is Structured Query Language. It is a standard language for managing and manipulating the database. In simple terms, SQL allows users to create, extract, modify, and update data from the relational database. It also manages user access permission and executes various other tasks.

What are the Components of SQL?

SQL is composed of several components, to serve different purposes:

DDL

Used to define and manage all the objects in the SQL database.
It includes commands like CREATE, ALTER, and DROP
DDL full form is Data Definition Language.

DML

Used to retrieve, insert, delete, and modify data in the database.
It includes commands like SELECT, INSERT, UPDATE, and DELETE.
DML full form is Data Manipulation Language.

DCL

Used to control access to data within the database.
It includes commands like GRANT and REVOKE.
DCL full form is Data Control Language.

TCL

Used to manage transactions within the databases.
Include commands like COMMIT and ROLLBACK.
TCL full form is Transaction Control Language.

Must Check: SQL Online Course and Certification

Must Check: Database and SQL Online Course and Certifications

What are some Basic Concepts and Terminologies used in SQL?

Database: It is an organized collection of structured information or data. It is usually controlled by a Database Management System (DBMS).
Table: It is a collection of rows and columns, where each row stores the data entity, and every column defines a specific information field.
Query: It is a request to extract data or information from a database.
Primary Key: A unique identifier for a row in the table. The primary key is always unique; no two rows in the table can have the same primary key.
Foreign Key: A set of one or more columns in a table that refers to the primary key in another table. It establishes and enforces a link between the data in two tables.
Index: In SQL, the index is used to speed up the retrieval of records on a database table. It provides quicker access to data as it creates more direct paths to desired records.
Joins: Joins in SQL combine rows from one or more tables based on a related column between them.
- In SQL, there are types of joins: Right Join, Left Join, Inner Join, and Full Outer Join.
Views: It is a virtual table based on the result set of an SQL statement. Similar to the real table, it also contains Rows and Columns.

Advantages of SQL

Advantages	Explanation
Simplicity	SQL has a simple syntax that makes it easy for beginners and professionals.
High-Level Language	Being a high-level language, it abstracts the complexities of working with databases.
Standardization	It is a standard language for managing relational databases. It ensures that SQL commands and operations are consistent across different database management systems (DBMS), allowing for portability and interoperability.
Data Integrity and Security	SQL provides built-in features for enforcing data integrity through constraints (e.g., primary key, foreign key) and robust security mechanisms for controlling user access, authentication, and authorization to protect sensitive data.
Scalability and Performance Optimization	SQL supports various techniques for optimizing query performance, such as indexing, query optimization, and database tuning.

Conclusion

SQL, or Structured Query Language, is more than a full form. It is a powerful language that forms the backbone of Database management. This article has discussed the full form, its components and some terminologies used in SQL. So, the next time, you will not just know the full form of SQL, but you will also know about its capabilities and features.

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