• MySQL Reference (Cheat) Sheet
  I’ve been putting together a quick reference guide to MySQL for some upcoming projects and thought that it was handy enough others might find it useful. When I went looking for some good references I was surprised to only find a handful of options and none of them alone had all the information I wanted at my fingertips. So, I figured, it would be worth it to spend the time to create my very own super-uber-ultimate MySQL reference. And now, I’m giving it to you… my lucky readers!
  I’ve been putting together a quick reference guide to MySQL for some upcoming projects and thought that it was handy enough others might find it useful. When I went looking for some good references I was surprised to only find a handful of options and none of them alone had all the information I wanted at my fingertips. So, I figured, it would be worth it to spend the time to cr
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• MySQL Reference (Cheat) Sheet
  I’ve been putting together a quick reference guide to MySQL for some upcoming projects and thought that it was handy enough others might find it useful. When I went looking for some good references I was surprised to only find a handful of options and none of them alone had all the information I wanted at my fingertips. So, I figured, it would be worth it to spend the time to create my very own super-uber-ultimate MySQL reference. And now, I’m giving it to you… my lucky readers!
  I’ve been putting together a quick reference guide to MySQL for some upcoming projects and thought that it was handy enough others might find it useful. When I went looking for some good references I was surprised to only find a handful of options and none of them alone had all the information I wanted at my fingertips. So, I figured, it would be worth it to spend the time to cr
  with mysql tipsntricks by 2 users
• MySQL Tips: Interesting Things to Know about MySQL
  TIP 1: Find out who is doing what, and kill the process if needed. This example kills Id 657. mysql> show processlist; show processlist; +-----+------+-----------+---------+---------+-------+-------+------------------+ | Id | User | Host | db | Command | Time | State | Info | +-----+------+-----------+---------+---------+-------+-------+------------------+ | 657 | prog | localhost | weather | Sleep | 28619 | | NULL | | 782 | prog | localhost | weather | Sleep | 853 | | NULL | | 785 | prog | localhost | NULL | Query | 0 | NULL | show processlist | +-----+------+-----------+---------+---------+-------+-------+------------------+ 3 rows i
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• new earth online / Dynamic Sortable Lists in Scriptaculous
  Sometimes it can really be useful to let a user sort a list of items, and this can easily be done using Scriptaculous, but when it comes to being able to sort dynamically updated lists it can get a little more complicated. Scriptaculous is an excellent Javascript library created by Thomas Fuchs of Wollzelle, and expands upon many functions such as those define in the Prototype library. One of the features of Scriptaculous is it's ability to allow users to sort lists by dragging and dropping the list items within the confines of a container (the ul). This isn't just confined to ul's and ol's though - you can also use it on any element you chose. One thing that is not particularly easy without some thought however is to create a list that is sortable, that ca
  New Earth Online offers a range of articles that covers tutorials on various aspects of Webpage development, general programming, and reviews of different products.
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• ON DK/NF NORMAL FORM
  DK/NF is best thought of as a straw man (sorry, straw person). It was introduced by Ron Fagin in his paper "A Normal Form for Relational Databases that Is Based on Domains and Keys," ACM TODS 6, No. 3 (September 1981). As Valdez says (more or less), Fagin defines a relvar R to be in DK/NF if and only if every constraint on R is a logical consequence of what he (Fagin) calls the domain constraints and key constraints on R. Here: A domain constraint--better called an attribute constraint--is simply a constraint to the effect a given attribute A of R takes its values from some given domain D. A key constraint is simply a constraint to the effect that a given set A, B, ..., C of R constitutes a key for R. Thus, if R is in DK/NF, then it is sufficient to
  The web site that sets matters straight by dispelling fallacies, misinformation and confusion about database management. The forum for concepts, principles and methods and their practical implications that receive little, incorrect, or no coverage from the trade media and no consideration from vendors and industry pundits.
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• ONJava.com: Database Connection Pooling with Tomcat
  Software object pooling is not a new concept. There are many scenarios where some type of object pooling technique is employed to improve application performance, concurrency, and scalability. After all, having your database code create a new Connection object on every client request is an expensive process. Moreover, with today's demanding applications, creating new connections for data access from scratch, maintaining them, and tearing down the open connection can lead to massive load on the server. Connection pooling eliminates JDBC overhead. Further, object pooling also helps to reduce the garbage collection load. In this article, we'll look at an elegant way of creating a pool of open database-connection objects in Tomcat, so that they are handy whenev
  Rather than repeatedly create and destroy database connections, experienced enterprise developers employ a pool of reusable connections. Kunal Jaggi shows how to implement this in Tomcat.
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• ONJava.com: What Is Struts
  Apache Struts is an open source Java framework used for building web applications based on the servlet and JavaServer Pages (JSP) technologies. It was created in 2000 by Craig R. McClanahan and has become the de facto standard framework for web applications in Java.
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• ONJava.com: What Is Struts
  Apache Struts is an open source Java framework used for building web applications based on the servlet and JavaServer Pages (JSP) technologies. It was created in 2000 by Craig R. McClanahan and has become the de facto standard framework for web applications in Java.
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• Open Directory - Computers: Programming: Languages: Java: Class Libraries: Graphics
  Top: Computers: Programming: Languages: Java: Class Libraries: Graphics (136) Description * Charts (21) * 3D (16) * Data Formats (24) * SVG@ (6) * User Interface Classes (55) See also: * Computers: Programming: Graphics: Libraries (250) * Computers: Programming: Languages: Java: Applications: Graphics (7)
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• Open Directory - Computers: Programming: Languages: Java: Class Libraries: Graphics
  * Charts (21) * 3D (16) * Data Formats (24) * SVG@ (6) * User Interface Classes (55) See also: * Computers: Programming: Graphics: Libraries (250) * Computers: Programming: Languages: Java: Applications: Graphics (7)
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• Open Source Code Analyzers in Java
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• Proper DB Design
  A Well Designed Relational Database [ Anomalies | NF Overview | Functional Dependence | Multivalued Dependence | Keys ] [ Normal Forms | 1NF | 2NF | 3NF | BCNF | 4NF | 5NF | DKNF | Interrelation Constraints ]
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• Relational databases - The untold story - Architect - Database - Builder AU
  Discover the origins of the modern relational data model, how rules were set for relational database theory, and how to put the theory into practice. Trying to use a relational database management system (RDBMS) without applying relational database theory to your design is like trying to drive a standard transmission without using the clutch: You're not going to get very far. In fact, your application may come to a grinding halt. If you're lucky, you'll end up with just an inefficient database. But it could be much worse. You could create a database that erroneously reports data or even destroys data. In this series of articles, you'll learn how to apply relational rules and, in the process, develop an efficient design that protects the validity of your dat
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• Relational databases - Using normal forms to create databases
  Go further from here: * SQL Server tips for working with nested triggers and dump files * Take part in the latest Builder.com technology use survey * Increase code reuse with Oracle user-defined aggregate functions
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• Rules of Data Normalization
  1NF Eliminate Repeating Groups - Make a separate table for each set of related attributes, and give each table a primary key. 2NF Eliminate Redundant Data - If an attribute depends on only part of a multi-valued key, remove it to a separate table. 3NF Eliminate Columns Not Dependent On Key - If attributes do not contribute to a description of the key, remove them to a separate table. BCNF Boyce-Codd Normal Form - If there are non-trivial dependencies between candidate key attributes, separate them out into distinct tables. 4NF Isolate Independent Multiple Relationships - No table may contain two or more 1:n or n:m relationships that are not directly related. 5NF Isolate Semantically Related Multiple Relationships - There may be practical constrains o
  Rules of Data Normalization Page
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• Save time on Firefox with GreaseMonkey lifehack.org
  Recently I have discovered GreaseMonkey extension. It allows users to use customize scripts, or even code on your own (if you know javascript) and able to add/improve feature on website - especially on web site usability and its navigations.
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• Search Tools with Open Source Code
  o ASPSeek (free) o BBDBot (free) (Discontinued) o Datapark Search (free) o ebhath (free) (Discontinued) o Eureka (free) (Discontinued) o ht://Dig (free) (Discontinued) o ISearch (free and commercial versions) (Discontinued) o JXTA Search (free) o Lucene (free engine, no crawler) o MG (Managing Gigabytes book and system) + see also A quick guide to performing IR batch experiments with the MG system o mnoGoSearch (free for Unix, low cost for Windows) o MPS Information Server (Discontinued) o Namazu (free) o Nutch (free) o OpenFTS (free) o OpenWebSpider (OWS) (free, open source) new"" ""
  Listing of open source search engine projects (generally free).
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• siwaclub.com.cn: Reading an Image from a File, InputStream, or URL javax Java Tutorial, javax EXAMPLES
  Learn Java - Programming Articles - Examples and Tips - Java Tutorial - Java EXAMPLES - java tips # iText # # tips # examples # quick start # article # books # introduce # api # open source project # # # AWT / Swing # Design Patterns # User Interface Design # Java Database Connectivity (JDBC) # Java Virtual Machine (JVM) # socket # io # jni # j2me # applet # # # javamail # JDBC # JSP # SERVLET # jstl # ejb # jms # web services # jndi # jaxrpc # # # # struts # ecilpse # spring # hibernet # tomcat # resin # jboss # weblogic # websphere # # # jdom # sax
  顶我吧！奇趣新鲜，小众资讯
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• Slow thumbnail creation. Please help!
  The following code takes requires less heap size but is painfully slow. It takes 10 seconds to create a thumbnail from a 3MB file. How could it be soooo slow? Size: 3MB Required Heap Size: 3MB Image read in: 721ms Image scaled in: 761ms Thumbnail created in: 10696ms Now, the reverse is true for the following piece of code. Its lightning fast. The following code requires LOT of heap space but is very quick. It takes 1.5 seconds to create a thumbnail from a 3MB file. File Size: 3MB Required Heap Size: 21MB Thumbnail created in: 1462ms
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• SourceForge.net: JIU - Java Imaging Utilities
  A Java library for loading, editing, analyzing and saving pixel image files. Java 1.1 or higher is required. Various file formats are supported, demo applications for the command line and the AWT GUI toolkit are provided. <<picture>>
  A Java library for loading, editing, analyzing and saving pixel image files.Java 1.1 or higher is required.Various file formats are supported, demo …
  code community conversion development downloads free graphics open raster-based secure software source
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