Tag: Queries
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DBA Scripts: Get Implicit Conversions
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Query & Performance Tuning An implicit conversion is SQL Server quietly changing a data type to compare two values that don’t match, and it’s one of the few performance problems that will not throw an error, will not show…
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DBA Scripts: Get Statistics Health
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Query & Performance Tuning Query plans are only as good as the statistics SQL Server uses to build them. When a table’s data distribution changes but its statistics don’t get refreshed to match, the optimizer keeps making decisions based…
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DBA Scripts: Get Top CPU Queries
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Query & Performance Tuning Three Different Ways a Query Can Be the Problem “Which query is causing this” has more than one right answer, because a query can be expensive in different ways: it can burn CPU, it can…
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