SQL Server 2008

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SQL Server 2008 Sparse Columns Identifying Columns For Conversion

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SQL Server 2008 has introduced a new way to store data for columns that contain excessive NULL values called Sparse Columns. What this means is that when you declare a column as Sparse and any time a NULL value is entered in the column it will not use any space. Is there a way to identify what columns would make a good candidate for this without having to analyze each column individually?

2008-12-15

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Creating JSON II

On SQL Server 2025, what happens when I run this code: 

SELECT JSON_OBJECTAGG( N'City':N'Denver' RETURNING JSON)
GO

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