Patrick

Patrick Keisler is a Senior CSA - Engineering for Microsoft with over 20 years of SQL Server experience working in various fields such as financial, healthcare, and government. You can follow him on Twitter or listen to him speak at various SQL Saturdays and user group meetings.

Blog Post

How to Convert FileTime to DateTime

One of my customers recently wanted to rename each of the SQL audit files will the datetime stamp of when it was created. I explained to them the filename...

2025-01-15 (first published: )

499 reads

Blog Post

Trace Flag 3625 Follow Up

Several months ago, I discussed my customer’s intention to enable trace flag 3625. Since that time, we have observed an intriguing phenomenon when encountering a login failure. To demonstrate...

2024-12-13 (first published: )

463 reads

Blog Post

How to Test Trace Flag 3625

Recently, one of my customers considered enabling Trace Flag 3625 on one of their SQL Servers, but they wanted a way to quickly test its functionality beforehand. For those...

2023-12-22 (first published: )

501 reads

Blogs

SQL Server Source Control on a $0 Budget

By

The Source Control Dilemma Every DBA has been there. Trying to keep track of...

CHOOSE’ing a Beer: #SQLNewBlogger

By

We recently published an article on CHOOSE at SQL Server Central. I thought it...

Don’t Treat Your Data Catalog Like a Data Museum

By

Introduction Treating your data catalog like a “data museum”—a static collection where information quietly...

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Forums

Transactional Replication from Read replica

By cooldude001

If I have Read replica (in Azure SQL MI), can it be used as...

SQL availability group and file server role answering from the same name

By bill-humphrey

Hello, I'm tasked with setting up a 2 node server cluster that will host...

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Question of the Day

Replacing a Null

What is returned from this code in SQL Server 2022?

DECLARE @value INT = NULL;
SELECT ISNULL(@value, 100.5) AS Result;

See possible answers