Tag: Performance

  • DBA Scripts: Get Lock Escalation, Contention Analysis, and Blocking Chains with Plan

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    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Blocking & Locking Three Different Views of the Same Underlying Problem Blocking Chains shows what’s blocked right now. These three scripts go wider and deeper: Get-LockEscalationStats finds which tables have converted row/page locks into full table locks (a common,…

    Written by

    Peter Whyte

  • DBA Scripts: Performance and Troubleshooting

    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks. Something is slow · the investigation You are past the point of guessing. This pillar is the middle step: turning “it feels slow” into a named, evidenced cause before you change anything. Look up the wait type Pick a diagnostic scriptYou are here…

    Written by

    Peter Whyte

  • DBA Scripts: Collect Performance Baselines (Wait Stats, Perfmon, Storage I/O)

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    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Maintenance & Automation › Collectors & Baselines Three Cumulative Counters, Three Matching Delta Scripts sys.dm_os_wait_stats, sys.dm_os_performance_counters, and sys.dm_io_virtual_file_stats are all cumulative since the instance last started, a raw snapshot of any of them tells you almost nothing on its own. Three collector generators…

    Written by

    Peter Whyte

  • DBA Scripts: Blocking and Locking

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    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting “The database is slow” and “the database is blocked” look identical from the outside, timeouts, a frozen application, users complaining, and the fix is completely different depending on which one it actually is. Four scripts on this site cover the…

    Written by

    Peter Whyte

  • DBA Scripts: Get Open Transactions

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    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Blocking & Locking The Transaction Nobody Remembered to Close An open transaction that never commits or rolls back is one of the quietest ways SQL Server gets into trouble: it holds locks other sessions wait on, it stops the…

    Written by

    Peter Whyte

  • DBA Scripts: Get Blocking Summary

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    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Blocking & Locking When Everything Looks Busy But Nothing Is Moving Blocking is one of the most common causes of a SQL Server that suddenly looks frozen. Applications start timing out, users report that everything has stopped responding, and…

    Written by

    Peter Whyte

  • DBA Scripts: Get Table Sizes

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    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Storage & Capacity Walk onto a new SQL Server instance and the first honest question is usually “where’s all the space going.” Not at the database level, sys.master_files answers that in seconds, but at the table level, inside a database that’s grown for…

    Written by

    Peter Whyte

  • DBA Scripts: Get Query Store Top Queries

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    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Query & Performance Tuning Query Store is SQL Server’s built-in flight recorder for query performance: every query’s plan, runtime stats, and history, retained and queryable without any extra tracing setup. Most instances have had it available since SQL Server…

    Written by

    Peter Whyte

  • DBA Scripts: Get Index Design Issues

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    🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Maintenance & Automation › Index Maintenance Most index problems aren’t about a single bad index, they’re about a table’s index design as a whole drifting out of shape over time. A table that accumulates 25 indexes because nobody ever removed the old ones.…

    Written by

    Peter Whyte

  • DBA Scripts: Get Implicit Conversions

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    🔧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…

    Written by

    Peter Whyte
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DBA Scripts180+ scripts, one page each SSMS Complete GuideInstall, shortcuts, git, Copilot, dark mode Error LibraryLook up an exact message, cause and fix Wait Types LibraryWhat the server was waiting on
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