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  1. SQL Subquery - GeeksforGeeks

    Sep 8, 2025 · A subquery in SQL is a query nested inside another SQL query. It allows complex filtering, aggregation and data manipulation by using the result of one query inside another.

  2. SQL Subqueries - w3resource

    Feb 13, 2025 · A subquery is a SQL query nested inside a larger query. The subquery can be nested inside a SELECT, INSERT, UPDATE, or DELETE statement or inside another …

  3. SQL Subquery

    In this tutorial, you'll learn about SQL subquery, a query nested within another query, to form flexible queries.

  4. 5 SQL Subquery Examples - LearnSQL.com

    Nov 18, 2021 · When a subquery returns a table with multiple rows and multiple columns, that subquery is usually found in the FROM or JOIN clause. This allows you to get a table with data …

  5. Understanding SQL Subqueries or Nested Queries - Tutorial …

    What Is a Subquery? A subquery, also known as a nested query or subselect, is a SELECT query embedded within the WHERE or HAVING clause of another SQL query. The data returned by …

  6. SQL Subquery: A Comprehensive Guide - DataCamp

    Jan 16, 2025 · A SQL subquery is a nested query within another SQL statement used for complex data retrieval, filtering, and aggregation to enhance database queries.

  7. SQL Subqueries: A Beginner's Guide (with Code Examples)

    Jun 10, 2022 · Every data scientist needs to know their way around a SQL database, including subqueries. In this article, we'll cover the basics of SQL subqueries, their syntax, how they can …

  8. How to Use a Subquery in a SELECT Statement - GeeksforGeeks

    Jul 23, 2025 · A subquery (also known as a nested query or inner query) is a query placed inside another query. The subquery is executed first, and its result is used by the outer query for …

  9. How to Use the SQL Subquery: A Detailed Guide - Codecademy

    In this guide, we’ll explore subqueries in SQL, covering their various uses, types, applications, and best practices to make the most out of this powerful feature. By the end of this article, we’ll …

  10. Subqueries (SQL Server) - SQL Server | Microsoft Learn

    Aug 21, 2025 · Look at an example of a subquery, which is a query that is nested in a SELECT, INSERT, UPDATE, or DELETE statement, or inside another subquery in SQL Server.