Tables Tagged SQL Tutorials


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How to Insert Values into a Table Within a Database in SQL Server 2008 R2

This tutorial will show how to insert values into table within a database. In SQL, there are two ways to insert data into a table:  one row at a time […]

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How to Handle Null Values with the COALESCE Function in SQL Server

Filed in: Queries, SQL Server

This tutorial will show how to use the COALESCE function to handle null values at run time. The COALESCE() function is used to specify how we want to treat NULL […]

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How to Create and Use a Derived Table in SQL Server

This tutorial will show you how to create and use a derived table in SQL Server. Derived tables, also known as subqueries, are defined in the FROM clause of an […]

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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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How to Use Wild Cards in SQL Server

Filed in: Queries, SQL Server

In this tutorial you will learn how to use wildcards in SQL Server. SQL wildcards can be used when searching for data in a database. SQL wildcards are used with the […]

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