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Subqueries - T-SQL Step by Step Course - Lesson 19 | SQL courses

Today, we will talk about subqueries, which are queries within queries. The outermost query is a query which resultset is returned to the caller. It is known as the outer query.

Duration: 17:51 min

Summary: Today, we will talk about subqueries, which are queries within queries. The outermost query is a query which resultset is returned to the caller. It is known as the outer query. The inner query is a query which result is used by the outer query. It is known as a subquery. The subquery can be self-contained or correlated. A self-contained subquery does not depend on the outer query that it belongs to. But the correlated subquery does. We will see examples of both.



Senior Software Engineer with experience in C#, JavaScript, jQuery, Knockout JS, Kendo UI, HTML5, and SQL Server. Ayad has more than 20 years experience in technical training and teaching. Contributor to MrBool for about 7 years.

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