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What Is a Subquery in a SELECT Query Statement in SQL Server
What Is a Subquery in a SELECT Query Statement in SQL Server?
✍: FYIcenter.com
A subquery is a SELECT statement used as part of the selection criteria of the main SELECT statement. The subquery specified in the WHERE clause will be evaluated repeated on each row of the selection base table. The output of the subquery will be used in the final evaluation of the criteria. Usually, subqueries are used in the following Boolean operations:
⇒ Using Subqueries with the IN Operators in SQL Server
⇐ "AS" - Naming Query Output Columns in SQL Server
⇑ Using SELECT Statements with Joins and Subqueries in SQL Server
2016-10-29, 1166🔥, 0💬
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