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Monitoring Azure SQL Databases

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There are many reasons you should monitor your databases, including avoiding performance problems or running out of disk space. Ideally, you want a scalable monitoring solution where you can monitor all your SQL databases in one single place. This article will describe two options that are available: Azure SQL Analytics and Azure SQL Insights. Both […]

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2022-03-18

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Estimated Rows

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Estimated Rows

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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?

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