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: )

635 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: )

558 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: )

556 reads

Blogs

Au Revoir for now

By

No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...

Goodbye, Microsoft

By

A few years ago I took a new job at Microsoft, working as a...

The SUM of Nothing: #SQLNewBlogger

By

I caught this interesting item over on Pinal Dave’s blog: Eleven Interview Questions that...

Read the latest Blogs

Forums

Building a SQL Server Fleet Audit That Leadership Actually Reads

By Mayank Sethi

Comments posted to this topic are about the item Building a SQL Server Fleet...

Smart AI Agents and Data Security

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Smart AI Agents and Data...

RegEx Functions IV

By Steve Jones - SSC Editor

Comments posted to this topic are about the item RegEx Functions IV

Visit the forum

Question of the Day

RegEx Functions IV

I have this data in a table in a SQL Server 2025 database:

EmailAddressID EmailAddress
7              [email protected]
8              [email protected]
If I run this query, which row(s) are returned?
SELECT top 10
 *
 FROM person.EmailAddress
 WHERE REGEXP_LIKE(EmailAddress, '^D', 'i')
 AND BusinessEntityID IN (7,8)
See possible answers