Brad McGehee

Brad M. McGehee is a MCSE+I, MCSD, and MCT (former) with a Bachelors’ degree in Economics and a Masters in Business Administration. Currently the Director of DBA Education for Red Gate Software, Brad is an accomplished Microsoft SQL Server MVP with over 13 years’ SQL Server experience, and over 6 years’ training experience.

Brad is a frequent speaker at SQL PASS, SQL Connections, SQLTeach, SQL Saturdays, TechFests, Code Camps, SQL Server user groups, and other industry seminars, where he shares his 13 years’ cumulative knowledge.

Brad was the founder of the popular community site SQL-Server-Performance.Com, and operated it from 2000 through 2006, where he wrote over one million words on SQL Server topics.

In 2008, Brad attended 16 conferences/user group events, presented 26 sessions, and had 1,402 people attend them.

A well-respected and trusted name in SQL Server literature, Brad is the author or co-author of more than 14 technical books and over 100 published articles. His most recent books include “How to Become an Exceptional DBA,” and “Brad's Sure Guide to SQL Server 2008: The Top Ten New Features for DBAs,” and “Mastering SQL Server Profiler.”

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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

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Permissions Removal When Changing Object Schema

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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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