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
5,763 reads
2022-10-26
446 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
2,314 reads
Blogs
A Last Minute Trip to the EU
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
Part 3 of 3: Tuning DiskANN — R, Alpha, L, Beam Width, Recall and Latency
In Part 1, we saw how ‘Vamana’ represents vectors as nodes, connects them with...
Automated SQL Server Benchmarking with HammerDB and Docker: A Complete Testing Framework
I’m excited to announce the release of a new open-source project that fully automates...
Forums
Server-Level Table sizes
Comments posted to this topic are about the item Server-Level Table sizes
Optional Parameter Plan Optimization in SQL Server 2025: Fixing the Kitchen-Sink Search Procedure
Comments posted to this topic are about the item Optional Parameter Plan Optimization in...
Question of the Day
ORDER BY alias
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers