Filtered Indexes: The Developer’s Secret Weapon in SQL Server
Learn about filtered indexes in SQL Server, how they work, and how they can help improve performance.
2025-11-24
3,668 reads
Filtered Index
A Rolling Filtered Index in SQL Server
I recently resolved an issue where a query pulling data from the last 30 days would time out due to the table’s size and the lack of a supporting index. Creating a supporting index is possible, but not ideal; it will be very large and may not be useful for most queries and use cases. I wonder how I could implement a filtered index that follows time and is always limited to the last n days.
2025-09-10
Prevent Duplicate Records in SQL using Filtered Index
In this article, I share how an SQL Server filtered index solved the problem of preventing duplicates for new rows in a table.
2024-07-03
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Minimally Viable Security
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Encoding NULL
Comments posted to this topic are about the item Encoding NULL
Question of the Day
Encoding NULL
What is returned from this code in SQL Server 2025?
SELECT BASE64_ENCODE(NULL)See possible answers