Below are a list of my top five quick-and-dirty strategies for improving database performance in web applications. These suggestions are culled from recent experience and mixed with some ideas that I've implemented in my own code. They're not high level, but they are something we need consistent reminders about. Here they are...

How to find what is blocking some process in SQL-server 2005

This screencast demonstrates enhancements to database support in NetBeans 6.5. These include support for the Sakila database, improved support for MySQL, improvements to the SQL Editor, SQL code completion, displaying multiple rowsets, and SQL history.

X2O makes building database-driven Flex and Flash CS4 apps incredibly faster. Define your data model using the visual interface and it will generate a database, a secure CMS, web services, and a library that you can drop into your project and use to interact with your data model via an easy to use API. No hosting setup, database development or server-side programming...instead, it lets you focus on your application.

GlassFish v3 Prelude launched recently and bundles Java DB, Sun's supported version of Apache Derby. As you may already know, GlassFish v3's foundations are based on HK2, some Hundred Kilobytes Kernel with a module subsystem and component model that can run on top of OSGI.

# Sequel provides thread safety, connection pooling and a concise DSL for constructing database queries and table schemas. # Sequel also includes a lightweight but comprehensive ORM layer for mapping records to Ruby objects and handling associated records.

On Monday last week, you saw us continue to convert that brand awareness to revenue - with the introduction of a full line of MySQL optimized systems. By our estimates, there are about 11,000,000 MySQL users on earth - our new systems can triple their application performance. So we've made free evaluation units available to MySQL users (via our Try and Buy programs). Click the image to the right to listen to Marten Mickos and John Fowler talk about the opportunities ahead.

I remember taking an operating systems class in college and marveling at the fact that operating system design seemed less about elegant engineering and more about [what I viewed at the time as] performance hacks. I saw a similar sentiment recently captured by Eric Florenzano in his post It's Caches All the Way Down where he starts describing how a computer works to a friend and ends up talking about the various layers of caching from CPU registers to L2 caches to RAM and so on.

MySQL is the world’s most popular open source database, sporting a barrier of entry low enough to attract novice developers yet powerful enough to power some of the world’s most popular websites, among them Yahoo!, BBC News, the U.S. Census Bureau, and Craigslist. Recently acquired by Sun Microsystems, MySQL’s future is indeed bright. This reference card was created to help you quickly navigate some of MySQL’s most popular features. Covering topics such as configuration, administration software, backup procedures, SQL features, and user management, this card will serve as a handy desk reference for countless projects to come.

A brand new JBoss Cache based Hibernate Second Level Cache provider was released a few weeks back for the JBoss Cache 1.4.x and Hibernate 3.2.x series which performs much better than previous similar providers.

A new feature is added in IntelliJ 8, which is the database browser. This functionality was already available with the help of some plugins, but now it has been integrated in the core of IntelliJ, and has been integrated in the complete IDE. This blog will give you some examples of how to set it up, and how to use it.

This blog describe you how to derive statistics with the use of 'GROUP BY' sql construct with examples

With more than 100 million downloads, MySQL is the world's most popular open-source database. MySQL's popularity is indicative of the growing adoption of open-source software. Developers are using open-source software because it offers them a reliable and low-cost alternative for developing their applications. This adoption trend extends to middleware too. For example, open-source servers are replacing proprietary servers in many enterprises. Case in point: GlassFish, an open-source, enterprise-quality, Java EE 5-compliant application server, enjoys significant popularity.

This article explains 50 New Features of SQL Server 2008

I've got the next error message from Oracle server, when I try to insert new record: ORA-01653: unable to extend table OWNER.TABLE_NAME by BYTE in tablespace TABLESPACE This blog entry give a solution for this problem.

I am working on a web application where one of the requirements is that I use an in-house Java database access framework. Personally I would prefer to use something that complements Spring and that makes my life easier such as Hibernate Annotations, iBATIS or even Spring JDBCTemplates but requirements are requirements.

This short tip shows how to quickly view stats on your queries and how to locate the bottlenecks.

A while ago when I was learning LINQ I searched the web for a 'cheat sheet'. I needed a single document that covered most of the common scenarios w.r.t LINQ so that I would not need to google every time I was writing LINQ queries. I found one very good one : http://aspnetresources.com/blog/linq_sqo__cheat_sheet.aspx . But I wanted more (as usual) so I created my own. I was also new to lambda expressions and I wanted to learn the differences between syntax in a LINQ query written in 'query syntax' and 'lambda syntax' so I also included that as part of my cheat sheet. Every query is given in both syntaxes. Here is a screenshot:

In this tutorial I will show you a short and simple way how to create a backup copy of your MySQL database using the mysqldump utility.

Starting with a concrete example, the construction of an efficient index for queries against trees in SQL, this article considers the tensions in OO programming and the question of "Why do we create objects?"

I found this great SQuirreL Universal SQL Client. It is free and open source. You can use it with any databse which have available JDBC drivers.

There is a challenge going on at the PowerShell Podcast (http://www.powerscripting.net) in Episode 46 (the current episode as of this writing) for anyone who can get db4o working with Microsoft Powershell. The guys hosting the podcast are giving away a prize to anyone who can accomplish the task.

I have always misunderstood the difference between NULL and DBNULL until recently while I was working on ASP.NET web application, and was talking to a Webservice and I found an exception coming from one of the web methods inside the Webservice which is using the SqlCommand.ExecuteScalar() method.

For a project I’m working on I needed to find the distances between two points to be able to let users ask the application questions like: “How many points of type X (coworkers, jobs, gas stations, donutshops) are within a radius of point y (my home, my office, my previous donut shop). Or what is the nearest point x from point y. I solved this problem with a stored procedure.

SQLite is a portable, self-contained database that is perfect for small projects that don't want or need the overhead of a dedicated database engine. According to their website, it's also the "most widely deployed database engine in the world". In this tutorial, we'll be using PHP to create, open, modify, and read data from a SQLite database. You might be surprised at how easy it is.