#sql server performance

Are you struggling with performance issues in your SQL Server? High wait statistics of the parallelism type might be the culprit. This article will demystify what parallelism wait statistics are, when they indicate a problem, and how you can address these issues to ensure your SQL Server runs smoothly. What Are Parallelism Wait Statistics? Parallelism in SQL Server refers to the ability of the…

Introduction If you’ve ever used SQLQueryStress to test your SQL Server’s performance, you might have encountered a situation where you see THREADPOOL waits but still have available worker threads. This scenario can be perplexing, especially if you’re trying to understand how SQL Server manages its resources. In this article, we’ll demystify this situation and explain why it happens, helping you…

Say you have inherited a SQL Server database with numerous nonclustered primary keys (PKs) and few clustered indexes experiencing suboptimal query performance. In this situation, adding clustered indexes or rebuilding PKs as clustered can potentially improve query speed. However, there are some important considerations to keep in mind. Understanding Clustered Indexes Clustered indexes…

In SQL Server, optimizing database performance is crucial for handling large datasets efficiently. Two powerful techniques for achieving this are table partitioning and partitioned views. While both approaches aim to improve query performance and manageability, they have distinct use cases and considerations. Table Partitioning Table partitioning involves horizontally dividing a table into…

In the fast-paced world of database administration, efficiency and speed are paramount. One often overlooked feature that can significantly enhance SQL Server performance is Instant File Initialization (IFI). This powerful capability reduces the time it takes to initialize data files, accelerating database operations such as restoring backups or adding data files to a database. Below, we explore…

In the realm of SQL Server management, ensuring optimal performance often involves meticulous examination and tuning of the plan cache. This cache, a crucial component for executing queries efficiently, can become cluttered with numerous execution plans, particularly when queries spam the cache due to varying SET options. Consequently, this article delves into practical T-SQL code examples and…

In the realm of SQL Server, the naming conventions we choose for our stored procedures can have more impact than one might initially believe. A commonly discussed topic amongst developers is the use of the prefix sp_ for user-defined procedures. While it may seem like a minor detail, adhering to best practices in this area is crucial for both performance and maintainability. Understanding the…

In the vast and intricate world of SQL Server, two commands that often spark interest among database professionals are DBCC DROPCLEANBUFFERS and DBCC FREEPROCCACHE. These commands play a pivotal role in the performance tuning and testing of SQL Server environments. By delving into practical T-SQL code examples, we can uncover the applications and implications of these commands, thereby enhancing…