Arrays

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Arrays in SQL that Avoid Repeated Groups

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It is certainly possible to fake an Array in SQL, but there are only a few occasions when it would be the best design. Most often, the wish for an array in SQL is a sign of a forlorn struggle against poorly-normalised data. One of the worst sins against Codd is the repeating group, as Joe Celko explains.

2011-07-20

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Question of the Day

Creating JSON III

In a SQL Server 2025 table, called Beer, I have this data:

BeerIDBeerName
1Becks
2Fat Tire
3Mac n Jacks
4Alaskan Amber
8Kirin
I run this code:
SELECT JSON_OBJECTAGG(
    BeerID: BeerName )
FROM beer;
What are the results?

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