SQL PROMPT

External Article

The Sins of SELECT * (BP005)

  • Article

If Prompt warns you of use of the asterisk, or 'star' (*), in SELECT statements, consider replacing it with an explicit column list. It will prevent unnecessary network load and query performance problems, and avoid problems if the column order changes, when inserting into a table.

2019-05-27

SQLServerCentral Editorial

Securing Code Early

  • Editorial

Last year I started to get alerts from Microsoft Repos that someone had put a piece of security information in their code that pertained to one of my Azure services. At first I was worried, but then I realized this was the public version of AdventureWorks we maintain in Azure. We've published the login so […]

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2019-04-17

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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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