Queries Tagged SQL Tutorials


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How to Check for Existing Rows in a Subquery in SQL Server

This tutorial will show you how to use the EXISTS predicate and check if a row does or doesn’t exist in a subquery. The EXISTS predicate accepts a subquery as […]

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How to Self-Join a Table in SQL Server

Filed in: Joins, SQL Server

This tutorial will show you how to self-join a table in SQL Server. By self-joining a table we are able to manipulate SQL Server into thinking that a self-joined table […]

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