Isolation Levels in SQL Server
Do your eyes start to cross whenever you think about isolation levels? Mine did, too. Here's how I keep it all straight.
2019-04-03
40 reads
The Non-Cluttered Index
Distributed Replay Utility – The Search for the Cure
The Complaint(s) When I was young, I went to nursing school. In school, we were taught that in order to come up with a proper diagnosis, the doctor first...
2019-04-01
42 reads
The Distributed Replay Utility: Replaying for Real (Where Could It Possibly Go Wrong)?
The Short Answer? (In at least a couple of places) When I first learned about the DRU, I was very excited about the possibilities. I began to play with...
2019-03-28
17 reads
Capture/Replay a Sample Workload on the Distributed Replay Utility
Part I: Capture a Workload Make a backup of the database(s) in question, as it will be necessary for the replay. Using the TSQL Replay template, fire up Profiler...
2019-03-26
92 reads
Improving Performance of the Distributed Replay Utility on SQL Server 2012
Setup the DRU What is it? The Distributed Replay Utility (DRU) on SQL Server allows you to capture Profiler trace information on one or more client servers and then...
2019-03-24
203 reads
Blogs
My Social Media Rules
By Brian Kelley
I developed these rules a while back, before COVID. I had a period of...
Why Use TRY_PARSE(): #SQLNewBlogger
By Steve Jones
Someone asked why I would use TRY_PARSE after I posted a question at SQL...
A Guatemalan's Guide to Drinking Coffee Properly
My mugI grew up surrounded by coffee farms in Guatemala and somehow spent most...
Forums
Partitioning a table with TEXTIMAGE_ON option
I have a table that ends in ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]. I'm about to...
OUTER APPLY Fundamentals: Part 2
Comments posted to this topic are about the item OUTER APPLY Fundamentals: Part 2
Building Great Software
Comments posted to this topic are about the item Building Great Software
Question of the Day
The Range of Customers
I have this data in the OrderHeader table in a SQL Server 2025 database (ordered by CustomerID ASC):
orderid orderdate customerid complete 3 2025-05-10 00:00:00.0002 1 21 2024-01-10 00:00:00.0003 1 15 2023-10-28 00:00:00.0004 1 13 2025-03-08 00:00:00.0006 1 11 2024-04-02 00:00:00.0007 1If I run this query, how many rows are returned?
SELECT * from dbo.OrderHeader where customerid between 3 and '6'See possible answers