TABLOCK Hint can Negatively Impact SQL Server Concurrency
In this article, we look at how using the Tablock hint in SQL Server could impact concurrency and block other sessions.
2023-11-29
Concurrency
Concurrency Challenges Around Schema Changes
A post on distributed systems and how schema changes are handled caught Steve's eye. See if you agree with how he thinks this should work.
2023-06-26
167 reads
Lock Scenarios Using sys.dm_tran_locks
Learn about the impact of locking and blocking in sessions through some demonstrations of different types of actions.
2020-06-11
8,414 reads
Concurrency Control in SQL Server
Learn a bit about concurrency problems in SQL Server, the issues they create, and the different isolation levels that help you solve them.
2020-05-12
43,473 reads
Prevent SQL Server Blocking using Lock_Timeout
In this tip we look at a way to minimize the length of blocking using SQL Server lock timeout.
2020-01-24
The Many Levels Of Concurrency
When designing for high concurrency, most people look to the hardware for answers. And while it’s true that it plays an important role, there’s a heck of a lot more to it.
2018-03-06
3,361 reads
2013-08-06
2,028 reads
Free eBook: Understanding SQL Server Concurrency
When you can’t get to your data because another application has it locked, a thorough knowledge of SQL Server concurrency will give you the confidence to decide what to do.
2020-11-11 (first published: 2013-07-17)
106,148 reads
Blogs
Asking for Help Isn’t a Weakness
By Brian Kelley
During COVID, I attended training on software/enterprise architecture given by Mark Richards. One of...
The Proof of the Backup Is in the Pudding
For me, the objective is straightforward: have a backup strategy that is reliable, understandable,...
T-SQL Tuesday #204 – Are blogs still relevant?
By DesertDBA
Note: This post is the invitation for T-SQL Tuesday #204 on November 3rd, 2026....
Forums
The ##MS_DatabaseConnector## User
Comments posted to this topic are about the item The ##MS_DatabaseConnector## User
Planning for Change
Comments posted to this topic are about the item Planning for Change
Importing Excel files into SQL Server, Azure Edition
Comments posted to this topic are about the item Importing Excel files into SQL...
Question of the Day
The ##MS_DatabaseConnector## User
On SQL Server 2025, I run this code as a sysadmin:
CREATE LOGIN Demo WITH PASSWORD = 'Demo1234567' GO ALTER SERVER ROLE ##MS_DatabaseConnector## ADD MEMBER Demo GOI then login as Demo and run this:
USE sandbox go SELECT CURRENT_USERWhat is returned? See possible answers
