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Gouache painting of a thick glass observation window in a slate-blue wall, a quiet sage workshop visible inside, a wooden rail in front and one vermilion lantern hanging from the frame

Claude on SQL Server: Read, Prove, Then Change

October 29, 2026
Pinal Dave
AI
AI, Query Store, SQL Performance, SQL Server Security, SQL Wait Stats

Claude on SQL Server is safe when production gives it eyes and nothing else. This post splits the loop into three stages: start this week with a read-only login, make it a daily habit with a past cases library, then run it on a schedule with a second opinion. I tested the login on SQL Server 2025.

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A colour plate in the style of a classic bird guide, eight small execution plan silhouettes arranged in two columns with numbers beside them.

Slow Queries: A Field Guide to Eight Species

October 23, 2026
Pinal Dave
SQL Performance
Execution Plan, SQL Index, SQL Performance, SQL Scripts, SQL Wait Stats

Slow queries, identified the way a field guide identifies birds: by silhouette, habitat, call, and the species they’re confused with. All eight were raised in the lab on SQL Server 2025. The reads and the wait types are what each one produced.

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A drive-in burger stand order window at dusk with a tray holding a single French fry and an order ticket reading ONE FRY AT A TIME

SQL Server Network Latency: When the Database Isn’t the Slow Part

October 6, 2026
Pinal Dave
SQL Performance
Computer Network, SQL Connection, SQL DMV, SQL Performance, SQL Wait Stats

SQL Server network latency can make a fast database look slow. An application that fetches 4,000 orders one query at a time pays for every round trip. I measured the loop against one query, tested what ASYNC_NETWORK_IO means, and show how to check your own round trip time.

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Visual representation of database health check.

Database Performance Health Check: Six Months Slow, Fixed in 75 Minutes

July 21, 2026
Pinal Dave
SQL Performance
Comprehensive Database Performance Health Check, SQL Wait Stats

Six months of slow SQL, fixed in 75 minutes. See what a database performance health check finds, and how one focused 4-hour session ends the guessing.

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SQL Server Wait Statistics Dashboard.

AI Built SQL Server Wait Statistics Dashboard in Minutes

March 11, 2026
Pinal Dave
AI
AI, Professional Development, SQL Wait Stats

One prompt. Twelve lines of plain English. A complete, production-quality, dark-themed SQL Server Wait Statistics Dashboard. And a feeling I am still not sure how to name.

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Farmers running down road with query performance train.

SQL SERVER Performance: When MAXDOP = 1 Slowed Down the Entire Business

July 25, 2025
Pinal Dave
SQL Performance
Comprehensive Database Performance Health Check, MAXDOP, SQL CPU, SQL Wait Stats

Slow reports, slow transactions, and the internal team could not find why. In this case study, MAXDOP = 1 was quietly slowing down the entire business.

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thread pool

SQL SERVER – Thread Pool Waits: Monitoring and Optimization

June 30, 2023
Pinal Dave
SQL Performance
SQL CPU, SQL Wait Stats

Thread pool waits management plays a vital role in maximizing the utilization of threads and ensuring the smooth execution of tasks.

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