Trees

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Navigating Trees With CTE

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Introduction This article shows how common table expressions (CTE) in SQL Server are naturally suited for navigating trees, such as finding its longest path, or diameter. Recall that a tree is an undirected graph where unique paths exist between any two nodes (i.e. vertices). Any node may be selected as its top node, with its […]

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2021-04-19

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Question of the Day

Encoding NULL

What is returned from this code in SQL Server 2025?

SELECT BASE64_ENCODE(NULL)

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