SQL Window Functions Series: LAG() and LEAD()
Dive deep into the powerful SQL window functions, LAG() and LEAD(). Explore their intricacies, discover real-world examples, and avoid common pitfalls.
2023-12-11
6,351 reads
LAG function
The SQL Server LAG Function
The LAG function can really improve performance over the old double JOIN.
2019-01-21 (first published: 2019-01-14)
3,231 reads
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A Strange Query
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Primary and Secondary Filegroup
Hello, I am having database primary and secondary filegroup. Few tables/indexes are partitioned on...
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A Strange Query
What does this return?
SELECT x=1 WHERE (SELECT 1) IN ( 1, 2, 3)See possible answers