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
10,549 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)
3,722 reads
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Question of the Day
No More Deadlocks
After detecting deadlocks in SQL Server 2025 and lowering the time threshold for detecting future issues, when does the Database Engine return to the 5s default interval?
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