2025-10-29
Query plans
Optimized Plan Forcing with Query Store in SQL Server 2022
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.
2023-09-04
5,818 reads
2022-10-26
457 reads
Query processing architecture guide
he SQL Server Database Engine processes queries on various data storage architectures such as local tables, partitioned tables, and tables distributed across multiple servers. The following sections cover how SQL Server processes queries and optimizes query reuse through execution plan caching.
2022-09-23
Maximize View of SQL Server Query Plans with Full Screen Option
In this tip we look at how to save an execution plan for future review as well as using the full screen mode to see more of a query plan at one time.
2020-08-18
Building SQL ConstantCare®: Analyzing Query Plans
Starting to translate sp_BlitzCache into the cloud.
2018-07-27
4,046 reads
Query Plan Oddities: Two Identical Missing Indexes
Brent demos a single query plan that asks for 2 identical indexes on the same table.
2017-12-26
3,142 reads
Number of Rows Read / Actual Rows Read warnings in Plan Explorer
Rob Farley looks at information exposed in query plans about residual predicates and actual rows read, showing how Plan Explorer helps identify the issue.
2016-07-20
3,121 reads
Exploring Query Plans in SQL
SQL Server keeps the most-used execution plans in cache, so it doesn't need to recompile the same queries every time. How can we benefit from this to find potential performance problems in execution plans?
2015-01-13
9,693 reads
2011-10-27
2,329 reads
Blogs
Announcements from the Microsoft Fabric Community Conference — Barcelona 2026
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
Au Revoir for now
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
Forums
Let's Talk Certifications
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The Hidden Security Risks of Role Combination in SSAS Tabular
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The Empty Aggregate
Comments posted to this topic are about the item The Empty Aggregate
Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers