queryperformance

SQLServerCentral Article

Optimized Plan Forcing with Query Store in SQL Server 2022

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In this Article ,  We will delve into the world of Query Store and explore how to use Optimized Plan Forcing to improve performance in SQL Server 2022. We will discuss what it is, how it works, and how it can impact your system's performance.

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2023-09-04

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SQLServerCentral Article

Optimize Your SQL by Reformulating the Spec

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As SQL developers, we tend to think of performance tuning in terms of crafting the best table indices, avoiding scalar and table valued functions, and analyzing query plans (among other things). But sometimes going back to the spec and applying some properties of elementary math can be the best way to begin to improve performance of SQL queries which implement mathematical formulas. This article is a case study of how I used this technique to optimize my SQL implementation of the Inverse Simpson Index.

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2021-05-07 (first published: )

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Specifying the Collation

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Comments posted to this topic are about the item Specifying the Collation

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Question of the Day

Specifying the Collation

I am dealing with issues on my SQL Server 2022 instance related to collation. I have an instance collation of Latin1_General_CS_AS_KS_WS, but a database collation of Latin1_General_CI_AS. I want to force a few queries to run with a specified collation by using code like this:

DECLARE @c VARCHAR(20) = 'Latin1_General_CI_AS'

SELECT  p.PersonType,
        p.Title,
        p.LastName,
        c.CustomerID,
        c.AccountNumber
 FROM Person.Person AS p
 INNER JOIN Sales.Customer AS c
 ON c.PersonID = p.BusinessEntityID
 COLLATE @c
Will this solve my problem?

See possible answers