SQL Tutorial - W3Schools
SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, …
What is a query? Database queries explained - Hostinger
Sep 15, 2025 · Learn what a query is, how it works in databases and search engines, plus query types and languages like SQL with clear, simple examples.
What is a Query in DBMS? - GeeksforGeeks
Jul 23, 2025 · A query in a DBMS is a request made by a user or application to retrieve or manipulate data stored in a database. This request is typically formulated using a structured …
20 Basic SQL Query Examples for Beginners - LearnSQL.com
Aug 17, 2023 · SQL is designed to talk to a database. We do that using sentences that we call queries, which are SQL commands for retrieving data from the database. We’ll soon show you …
What is a query? | Definition from TechTarget
Apr 16, 2024 · Primarily, queries are used to find specific data in a database by providing or filtering explicit criteria. Some query languages allow users to write and make multi-source …
What is a database query? SQL and NoSQL queries explained
Oct 31, 2025 · In this article, we’ll introduce you to database queries with multiple common uses, including SQL, NoSQL, MongoDB, PostgreSQL, and more. You’ll learn when to use a …
What is a Database Query + Real-Life Examples of Query Usage
Nov 14, 2025 · Understand what a database query is and how it enables efficient data retrieval and management in relational databases. Learn about different types of database queries, …
Understanding Database Queries: What They Are and Their …
Apr 1, 2025 · Database queries serve a fundamental purpose in managing and manipulating data stored within a database. Their primary functions include retrieving information, updating data, …
SQL Query Examples and Tutorial - DataCamp
Jul 28, 2022 · What is an SQL query? SQL stands for S tructured Q uery L anguage. People often pronounce it as either “S-Q-L” or “sequel.” SQL is used in programming and is designed for …
SQL Queries You Need to Know (with Practical Examples)
Feb 24, 2025 · Learn how to write SQL queries to extract data from two or more databases, use SQL dot commands to simplify tasks, and more!