Many new SQL performance tuning features are added to SQL Server in each new version. In some cases, these features might boost our query performance dramatically. For this reason, it will always be useful for us to be informed about these new features. Such as the following features are ver...
1. SQL Performance Tuning team recommends using COUNT(1) instead COUNT(*) for SQL query performance optimization. Example: --Do not use: SELECT COUNT(*) FROM master; --Use: SELECT COUNT(1) FROM master; 2. Never compare NULL with NULL. Consider that NULL is not like an empty string or...
Trudy Pelzer
SQL Server Articles SQL Server Database Performance Tuning You’re a developer, DBA, or sysadmin stuck with long running queries in SQL Server, and you need to do SQL Server performance tuning. I can help! I’m a consultant, and I do this for a living. I don’t keep anything secret ...
Call our SQL Tuning Server Performance Experts for solutions to your performance problems. SQL Server- Performance for Large Enterprise Solutions Microsoft SQL Server provides a comprehensive data platform that can grow with your business. SQL Server is packed with technologies to scale-up individual ...
There are many ways to tune a PostgreSQL database’s performance. It mostly depends on the use case, so it’s important to know what you want to achieve before you start. There are multiple configuration parameters that can be used for tuning, some of which I’ll discuss in this section...
30 分钟快快乐乐学 SQL Performance Tuning 有些程序员在撰写数据库应用程序时,常专注于 OOP 及各种 framework 的使用,却忽略了基本的 SQL 语句及其「性能 (performance)优化」问题。版工曾听过台湾某半导体大厂的新进程序员,所组出来的一段 PL/SQL 跑了好几分钟还跑不完;想当然尔,即使他的 AJAX 及ooxx框架用...
SQL Performance Tuning 有 些程序员在撰写数据库应用程序时,常专注于 OOP 及各种 framework 的使用,却忽略了基本的 SQL 语句及其「性能 (performance) 优化」问题。版工曾听过台湾某半导体大厂的新进程序员,所组出来的一段 PL/SQL 跑了好几分钟还跑不完;想当然尔,即使他的 AJAX 及 ooxx 框架用得再漂亮,...
SQL Server 2005 Performance Tuning的目录主要包括以下几个方面：性能调校概观 识别并解决影响系统性能的问题。优化系统架构，合理配置硬件资源。选择合适的工具与方法进行调校。SQL Server架构简介 深入探讨SQL Server的运行架构。包括访问架构、核心引擎、动态自我管理和硬件使用剖析。性能调校相关工具程序 介...
以下是版工整理出的一些数据库规划、SQL performance tuning 简单心得,让长年钻研 .NET、AJAX、一堆高深 ooxx framework,却无暇研究 SQL statement 的程序员,透过最短时间对本帖的阅读,能避免踩到一些 SQL 的性能地雷。 (注:本帖的 SQL 语句皆经过测试可正常执行无误。有兴趣实验者,可直接拷贝后,粘贴至 SQL ...