Todd Kleinhans has been working with SQL Server since 1999. He has worked as a dba, developer, data architect, manager, and consultant in a wide number of industries. He is currently a Senior SQL Server DBA at Good Sam Enterprises. Todd is also the current VP of Marketing for the Denver SQL Server User Group. He has presented at user groups, SQL Saturdays, and virtual groups too.

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Creating a JSON Document IV

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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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