Azure SQL database

External Article

“Oops, I Lost My Indexes in Azure SQL DB.”

  • Article

I got an interesting request for consulting, and I’m going to paraphrase it: We were using Azure SQL DB with automatic index tuning enabled for months. Things were going great, but… we just deployed a new version of our code. Our deployment tool made the database schema match our source control, which… dropped the indexes Azure had created. How do we get them back?

2023-09-25

SQLServerCentral Article

Exploring Parameter Sensitive Plan Optimization in SQL Server 2022

  • Article

PSPO (Parameter Sensitive Plan Optimization) is a SQL Server feature that improves query performance by accepting varied data sizes based on the runtime parameter value(s) specified by the customer. It deals with the situation in which a single cached plan for a parameterized query isn't the best option for all potential incoming parameter values. Non-uniform data distributions exhibit this phenomenon. When using PSPO, SQL Server keeps several execution plans for a single query, each one customized for a particular parameter value. With the help of this feature, numerous execution plans for a parameterized query are generated, each of which is tailored for a certain range of parameter values.

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2023-07-21

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Question of the Day

Replacing a Null

What is returned from this code in SQL Server 2022?

DECLARE @value INT = NULL;
SELECT ISNULL(@value, 100.5) AS Result;

See possible answers