Dallas DBAs

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SQL Server Is Slow (part 1 of 4)

How should you respond when you get the dreaded Email/Slack/Text/DriveBy from someone yelling at you that SQL Server is slow?   Stop. Don’t Open SSMS Yet. You’ve heard it...

2025-10-08 (first published: )

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Blog Post

SQL Server Availability Groups

Flexibility and Scale at the Database Level When SQL Server 2012 introduced Availability Groups (AGs), they changed the HA/DR game. Unlike Failover Cluster Instances (FCIs), which protect the whole...

2025-09-10

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Blog Post

SQL Server Failover Cluster Instances

Old Reliable Still Matters If you’ve been around SQL Server for a while, you’ve heard of Failover Cluster Instances (FCIs). They’ve been part of SQL’s high availability toolbox since...

2025-09-19 (first published: )

213 reads

Blog Post

SQL Server Backups: The Basics

If you’re responsible for a SQL Server instance, you need working, consistent backups. Not just a .bak file here and there, but a plan that runs automatically and covers...

2025-08-20

33 reads

Blog Post

SQL Server Maintenance Plans

If you’re a DBA, sysadmin, IT manager, or Accidental DBA, you’ve probably seen SQL Server’s built-in Maintenance Plans. They live right there in SSMS under the “Management” node, quietly...

2025-08-15 (first published: )

431 reads

Blogs

T-SQL Tuesday #198–Change Detection

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This month we have a new host, Meagan Longoria, who graciously agreed to help...

Redgate and Rome

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I’m at the UK Redgate office today, meeting with senior leaders in all areas...

Quick Tip: Check Most DTU Expensive Queries in Azure SQL Database

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Optimizing Azure SQL Database performance often begins with identifying the most resource-intensive queries. Understanding...

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Creating a JSON Document IV

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Creating a JSON Document IV

Permissions Removal When Changing Object Schema

By Brandie Tarvin

When the schema of an object is changed, SQL Server wipes out the previous...

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Question of the Day

Creating a JSON Document IV

I have this data in a table called dbo.NFLTeams

TeamID  TeamName       City             YearEstablished
------  --------       ----             ---------------
1       Cowboys        Dallas           1960
2       Eagles         Philadelphia     1933
3       Packers        Green Bay        1919
4       Chiefs         Kansas City      1960
5       49ers          San Francisco    1946
6       Broncos        Denver           1960
7       Seahawks       Seattle          1976
8       Patriots       New England      1960
If I run this code, how many rows are returned?
SELECT 
  YearEstablished,
  json_objectagg(city : TeamName)
FROM dbo.NFLTeams
GROUP BY  YearEstablished;

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