SQL Server Availability Groups are great for DR and HA purposes. In this article, we look at how to setup a SQL Server 2025 Availability Group using the features in SQL Server Management Studio.
2026-08-12
2026-05-04
138 reads
Learn how you can add transactional replication to an AG to move data to an Azure SQL Database.
2026-03-20
2,901 reads
2026-02-09
523 reads
With SQL Server 2012 Microsoft introduced the AlwaysOn Availability Group feature, and since then many changes and improvements have been made. This article is an update to another article, and will cover the prerequisites and steps for installing AlwaysOn in your SQL Server 2019 environment. Prerequisites Before implementing your AlwaysOn Availability Group (AG), make sure […]
2025-12-24 (first published: 2025-11-25)
2,262 reads
Knowing the usage from all workloads is definitely better than focusing on only the primary or a single secondary. But what if I want to make more informed decisions, incorporating row counts, size, and index columns into this output?
2025-10-27
Spotting synchronization disconnects between a primary and a secondary data center in a distributed availability group configuration can be hard, so here are valuable tools to help you with it
2025-10-10
1,660 reads
Synchronous replicas in SQL Server Availability Groups promise no data loss, but they don’t promise zero delay; under heavy load they can still fall behind. This article shows how to measure and track that hidden replication delay using SQL Server performance counters, so you can see how well your system keeps up during IO‑intensive operations and plan maintenance more safely.
2025-09-17
SQL Server 2022 introduced a new feature called Contained Availability Groups. It allows the Database Administrators to effectively manage the Server Level objects, such as Logins, SQL Agent jobs, etc. in an HA environment. In today's article, we will learn about this new feature of SQL Server. The Challenge of Managing Server Objects in Availability […]
2025-08-20
10,987 reads
A customer has a database that is already set up in a SQL Server Availability Group. Since this database hosts sensitive data, there is a need to encrypt the primary and all secondary replicas of the data. In this article, we will walk through how this can be done.
2025-08-13
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
By Steve Jones
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There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers