Tag: SQL Scripts
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DBA Scripts: Get Database Mail and xp_cmdshell Configuration
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Security xp_cmdshell lets any login with EXECUTE permission on it run arbitrary operating system commands from inside SQL Server. It’s genuinely useful for a handful of legacy automation tasks, and it’s also one of the first things a penetration tester checks for, because…
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DBA Scripts: Check AG Replica Role and Synchronization State
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: High Availability Is Every Replica Actually Ready to Take Over An Availability Group only protects you if every secondary replica is actually connected, synchronized, and healthy at the moment you need it. A replica that quietly dropped its connection hours ago looks identical…
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DBA Scripts: Check Always On Availability Group Latency
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: High Availability How Far Behind Is Each Database, Really Availability Group Replica State answers whether a replica is connected and generally healthy. It doesn’t answer the database-level question that actually matters during an incident: how much data is sitting in the send queue…
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DBA Scripts: Get Disk Space on SQL Server
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Storage & Capacity A SQL Server that runs out of disk stops taking writes, and depending on which volume filled up, that can mean suspended databases, a frozen transaction log, or failed backups at exactly the wrong moment. Disk space is the least…
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DBA Scripts: Get Long-Running Queries
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Query & Performance Tuning When users report the application is slow, the first question is always the same: what is actually running right now? Not what ran an hour ago, not what the plan cache thinks is expensive on…
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DBA Scripts: Get Missing Indexes
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Maintenance & Automation › Index Maintenance Every time SQL Server builds an execution plan that could have been improved with a better index, it makes a note of it. Those notes accumulate in memory and are queryable through the sys.dm_db_missing_index_* DMVs, and combined…
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DBA Scripts: Get Index Fragmentation Across Databases
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Maintenance & Automation › Index Maintenance Index fragmentation checks are usually written for one database at a time, which is fine until you inherit an instance with forty databases and no idea which of them has been skipping maintenance. Running a per-database script…
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DBA Scripts: Get Database IO Usage
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Query & Performance Tuning When a SQL Server is struggling and the usual suspects (CPU, memory, blocking) come back clean, the next question is always the same: which database is hammering the disks? On a busy instance hosting ten…
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DBA Scripts: Get Wait Statistics
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting Every time a SQL Server session has to wait for something, a lock, a page from disk, a CPU slice, a memory grant, the engine records what it waited on and for how long. Those counters are the instance’s own…
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DBA Scripts: Get Worker Threads and Active Sessions
🔧Part of the DBA-Tools Project, copy/paste SQL Server scripts and health checks.In: Performance & Troubleshooting › Query & Performance Tuning There is a particular kind of SQL Server incident where the server is up, CPU looks fine, and yet new connections hang or time out. Applications report login failures, and even your own SSMS connection…
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