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SQL Articles


Understanding Local Variables and Global Variables in SQL Server

Tutorialsrack 07/02/2025 SQL SQL Server

In SQL Server, variables are fundamental tools for temporarily storing data and controlling the flow of your queries. Whether you're writing simple scripts or developing complex stored procedures, understanding how to work with variables is essential. In this guide, we will delve into local variables and global variables—two distinct types that play unique roles in SQL Server.

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How to Disable an Index in SQL Server

Tutorialsrack 12/01/2025 SQL SQL Server

Indexes are crucial for optimizing query performance in SQL Server databases. However, there may be situations where you need to disable an index temporarily. This article will guide you step-by-step on how to disable an index in SQL Server, from beginner-friendly instructions to advanced use cases. Disabling an index is different from deleting it—it preserves the metadata while making the index unavailable.

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