Structured Query Language is a language that manages data and handles structuring data especially in a relational database management system (RDBMS). It is used to communicate with and manipulate databases. It provides a versatile and powerful way to interact with data stored in tables which grants the users the ability to retrieve, insert, update, and delete data, as well as define and manage the structure of databases.
Where do we see SQL?
SQL is deeply implemented in the blueprint of vast amounts of applications and websites across different kinds of industries. In the topic of E-commerce, SQL is used to manage databases extensively to handle product listings, inventory management, and order processing. In the topic of social media, platforms such as Facebook, Twitter, and LinkedIn utilizes SQL databases to manage user profiles, posts, comments, and interactions. From entertainment and media streaming services to library management systems and beyond, SQL serves as the backbone for storing, retrieving, and manipulating vast amounts of data that controls the digital experiences we interact with daily.
Fundamental Components and Operations of SQL
SQL consists of several fundamental components and operations that enable users to interact with databases effectively. These include:
Data Definition Language (DDL):
DDL statements are used in order to create indices and define and manage relationships.
Data Manipulation Language (DML):
DML statements are used to insert, update, and delete data stored in tables.
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