When Page Prefetching Takes a Back Seat – Exploring Trace Flag 652 in SQL Server
Learn how a trace flag affects SQL Server reading from disk and where this might be a useful thing for you to enable.
2025-09-24
2,388 reads
SQL Server internal storage
2025-05-16
614 reads
2025-01-15
1,854 reads
What happens when we drop a column on a SQL Server table? Where's my space?
You have dropped a column and wondering why you haven't recovered any space? Let's take a look.
2024-08-01 (first published: 2024-04-26)
4,575 reads
Identify Tables With Dropped Columns
How easily can we find tables with dropped columns that need cleanup?
2024-06-07
2,418 reads
2024-04-10
447 reads
Understanding CRUD Operations on Tables with B-tree Indexes, Page-splits, and Fragmentation
Introduction Every DML transaction reads the data before it makes any changes. Not only during a SELECT query, but when you run any DML statement, insert, update, or delete, SQL Server first fetches a bunch of pages into the buffer pool locating the desired rows and changes them while synchronously writing to the transaction log […]
2021-05-10
8,069 reads
Understanding CRUD Operations Against Heaps and Forwarding Pointers
In this article, we examine how data changes are made against heaps.
2021-05-03
4,761 reads
Understanding the Internals of a Data Page
In Part 1 of this series, we examine the structure of data pages and how your tables are stored on these pages.
2021-04-13
19,332 reads
2020-06-26
641 reads
Blogs
SQL Server 2025 GAs Today
By Steve Jones
If you aren’t watching the Ignite keynotes today, then you might have missed the...
Run SQL Server 2025 and SQL Server Management Studio on macOS Tahoe
Short version You want to get this running as fast as possible. Do these...
The Roundup for T-SQL Tuesday #192
By Steve Jones
Last week I asked you to write about SQL Server 2025 and what things...
Forums
Best way to log Data Flow errors in SSIS 2005?
Hi everyone, I’m working with some old SSIS 2005 packages, and I’m trying to...
Advanced Excel Mastery for Finance, Accounting & Payroll – 2025 Edition
Unlock the full potential of spreadsheets with our “Advanced Excel Mastery” course tailored for...
2025 Form 1099 Reporting Requirements: Essential 1099 NEC Updates
Prepare your team for the upcoming compliance shift with our “2025 Form 1099 Reporting...
Question of the Day
Specifying the Collation
I am dealing with issues on my SQL Server 2022 instance related to collation. I have an instance collation of Latin1_General_CS_AS_KS_WS, but a database collation of Latin1_General_CI_AS. I want to force a few queries to run with a specified collation by using code like this:
DECLARE @c VARCHAR(20) = 'Latin1_General_CI_AS'
SELECT p.PersonType,
p.Title,
p.LastName,
c.CustomerID,
c.AccountNumber
FROM Person.Person AS p
INNER JOIN Sales.Customer AS c
ON c.PersonID = p.BusinessEntityID
COLLATE @c
Will this solve my problem? See possible answers