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
8,359 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)
3,392 reads
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Question of the Day
Minimum Change Tracking Retention
If I am running this code:
ALTER DATABASE AdventureWorks2017 SET CHANGE_TRACKING = ON (CHANGE_RETENTION=xxx);What is the minimum amount of time I can set? See possible answers