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  • Understanding WHERE 1=1 and WHERE 1=2 in SQL Queries

    In SQL, you will often see queries written using WHERE 1=1 or WHERE 1=2. At first glance, both look pointless. One is always true, the other always false. In practice, both are deliberate patterns used for query construction and control, not filtering logic. They exist to make SQL safer, easier to manipulate, and more predictable…

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  • DBA Scripts: Get MAXDOP Configuration

    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Server & Configuration Max Degree of Parallelism is one of the first things worth checking on any server, and one of the most commonly wrong. The default of 0 lets a single query use every scheduler on the box, which sounds efficient until…

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  • DBA Scripts: Get Memory Configuration and Usage

    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Server & Configuration Max Server Memory is the single most important memory setting on any SQL Server instance, and it’s astonishing how often it’s left unconfigured. Without a cap, SQL Server will happily consume nearly all available RAM for its buffer pool, leaving…

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  • How to Open PowerShell as Administrator on Windows

    Running PowerShell as Administrator is required for many system-level tasks such as configuring Windows, installing software, or running administrative scripts. If a command fails unexpectedly, one of the first things to verify is whether the PowerShell session is actually elevated. Below are the most reliable ways to open PowerShell with elevated privileges on Windows. Quick…

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  • DBA Scripts: Get Version and Edition

    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Server & Configuration › Server Inventory Version and edition are two of the most basic facts about a SQL Server instance, and two of the easiest to get wrong when you’re relying on memory or an out-of-date wiki page. Whether a feature is…

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  • What the USE Command Does in SQL Server

    The USE command changes the database context for the current session. Every statement in SQL Server runs in the context of a database. When you run USE, you are telling SQL Server which database subsequent statements should execute against until the context changes again or the session ends. That single behaviour explains a lot of…

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