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PolyBase in SQL Server 2019 – The End of ETL?

PolyBase has been around since 2016, but Microsoft is enhancing it in 2019 with the ability to connect to more data sources. You can now use PolyBase to connect to other SQL Server instances, and it’s easy to set up with a wizard. In this article Benjamin Weissman explains what’s new in PolyBase and walks you through setting it up and connecting to an external table.

2019-08-08

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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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