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The Next Data Decade

There are lots of predictions that people make at the start of every year. I've written quite a few over the years, but in 2020 I decided not to make any. After all, there are plenty of other people making them. One person that did make some was Jeff Clarke, COO of Dell. He wrote […]

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Create Custom Functions in Power Query

Introduction Often at times, you may come across situations where you need to calculate a column repeatedly multiple times in the same Power BI report or across multiple reports. Although you can use the calculated columns to some extent, these are not robust and not reusable. In order to reuse the same piece of code, […]

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Creating a JSON Document IV

By Steve Jones - SSC Editor

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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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