SQL

What Is SQL?

A programming language used to interact with relational databases, allowing users to create, read, update, and delete data.

Behind every structured database is a language that makes it all work: SQL. Whether you’re managing customer records, processing transactions, or building internal tools, SQL is the standard way to query and manipulate data in relational databases.

SQL: Meaning and Definition

SQL stands for Structured Query Language. It’s a programming language used to interact with relational databases, allowing users to create, read, update, and delete data using structured commands.

SQL allows for both data manipulation (like searching or editing records) and data structure management (like creating tables or setting rules). It’s widely supported and used across systems like MySQL, PostgreSQL, Microsoft SQL Server, and many cloud-based platforms.

In simple terms, SQL helps you ask questions about your data and get structured, meaningful answers.

What Is Structured Query Language Used For?

SQL is the backbone of many business-critical systems. Its use cases include:

Retrieving specific records from large datasets
Filtering and sorting data based on conditions
Joining related tables to consolidate information
Updating or deleting data with precision
Creating and modifying database structures

These capabilities are essential for reporting, automation, and building apps that rely on dynamic, structured data.

Common SQL Commands

Here are some of the most commonly used SQL commands:

‍

Command	Purpose
SELECT	Retrieve data from one or more tables
INSERT	Add new data into a table
UPDATE	Modify existing data
DELETE	Remove records
JOIN	Combine rows from multiple tables
CREATE	Define new tables or database objects

‍

These commands form the core of working with structured data in nearly any relational system.

Using SQL with Noloco

Build no-code front ends for your SQL database without touching a line of code.

Noloco connects directly to popular SQL databases like PostgreSQL and MySQL, allowing you to build powerful internal tools and client portals on top of your existing data infrastructure. You can create secure, interactive views of your data, apply role-based permissions, and automate actions using AI-powered workflows, all without needing to write SQL queries yourself.

Whether you’re looking to give teams access to insights or simplify back-office processes, Noloco helps you bring your SQL data to life in a user-friendly, no-code interface.

Explore more essential terms in our glossary to learn how to integrate structured data into modern app development.

‍