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SQL Logic

In this article, I will discuss the history and thinking behind several types of logic that are typically associated with writing relational database code.

2024-04-26

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Pagination and ordering by large values

Pagination is a technique for limiting output. Think of Google search results, shopping the electronics category on Amazon, or browsing tagged questions on Stack Overflow. Nobody could consume all of the results in a single shot, and no site wants to spend the resources required to present them all to us

2024-04-19

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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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