2025-10-15
1,533 reads
GENERATE_SERIES()
2025-06-13
824 reads
The Power of Generate_series
SQL 2022 introduced the function generate_series which permits us to solve problems for which we previously had to use a table of numbers (also known as a "tally table"). generate_series is a great addition, because when using a table of numbers there was always a risk that you could run out of numbers. Or some joker could have deleted rows from the table. All these worries are gone with generate_series.
2025-03-05
The Basics of Using GENERATE_SERIES()
This article shows how GENERATE_SERIES can be used with a few practical examples and a warning on parameters.
2023-10-09
8,817 reads
GENERATE_SERIES() Breaks Minimal Logging
tl;dr The title says it all. Prologue One of the keys to my personal learning is that, very early in my database career, I taught myself how to make lot’s of rows of Random Constrained Data in a comparatively short time. With the help of a few good folks over time, the method has been […]
2023-09-18
3,886 reads
How to Expand a Range of Dates into Rows with the SQL Server Function GENERATE_SERIES
In this tip, we cover how to use the GENERATE_SERIES function to expand a range of dates into rows
2022-09-07
2022-08-15
360 reads
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Question of the Day
Estimated Rows
I have two calls to the GENERATE_SERIES TVF in this code:
SELECT TOP 10 gs.value FROM GENERATE_SERIES(1, 10) AS gs ORDER BY NEWID () OPTION (RECOMPILE); go DECLARE @a int = 10; SELECT TOP (@a) gs.value FROM GENERATE_SERIES(1, @a) AS gs ORDER BY NEWID () OPTION (RECOMPILE);In the actual query plans, what is the estimated number of rows for each batch in SQL Server 2022? See possible answers