kissbi-CSDN博客

原创 weka.datagenerators package

weka.datagenerators packages分为三大类：1. for classification2. for regression3. for cluster* The main class is DataGenerator, it is a abstract class.* ClassificationGenerator ClusterGenerator and Regressi

2008-01-24 09:46:00 350

原创 C/C++ books

C程序设计语言 C和指针 C陷阱与缺陷 C专家编程 C语言接口与实现 C++ primer 深度探索C++对象模型 Effective C++ More Effective C++ C++语言的设计与演化 Windows核心编程 Windows程序设计 MFC程序设计 Visual C++6.0技术内幕 Windows环境下32位汇编语言程序设计加密与解密

2007-12-17 09:35:00 423

原创 create and use win32 static library

1. create static lib: the lib name is libProducer.ibcExample.h#ifndef C_EXAMPLE_H#define C_EXAMPLE_Hextern int add(int x, int y);#endif#include "cExample.h"int add(int x, int y){ return x+y;}2. use

2007-09-25 10:53:00 495

转载 C++中extern “C”含义深层探索

1.引言　　C++语言的创建初衷是“a better C”，但是这并不意味着C++中类似C语言的全局变量和函数所采用的编译和连接方式与C语言完全相同。作为一种欲与C兼容的语言，C++保留了一部分过程式语言的特点（被世人称为“不彻底地面向对象”），因而它可以定义不属于任何类的全局变量和函数。但是，C++毕竟是一种面向对象的程序设计语言，为了支持函数的重载，C++对全局函数的处理方式与C有明显的

2007-09-24 11:25:00 387

原创 DTP Project解析

使用DTP 分四个步骤： define a driver template; create a connection profile; connect to Da

2007-09-05 17:36:00 721

原创 using DTP to connect to MySQL

This article introduce the simple step of using Mysql in DTP.step 1: define a driver template open the Preferences dialog and select Connectivity-->Driver Definitions; select "MySQL 5

2007-09-05 16:25:00 376

原创几个概念

1. 代理键（surrogate key）一个作用就是跟踪渐变维（SCD），2. 渐变维（slowly change dimension, SCD）三种处理方式3. 退化维（degenerate dimension, DD）加快group by；维表具有和事实表同样粒度，join将很消耗资源Reference:1. http://happysboy.bokee.com/89

2007-08-24 17:16:00 404

原创 slow change dimension

http://www.intelligententerprise.com/info_centers/data_warehousing/showArticle.jhtml?articleID=59301280

2007-08-24 15:43:00 566

原创 Unveil Kettle

Kettle is an open source ETL tools, it is a part of Pentaho BI Suite.1. Kettle jar main package: be/ibridge/kettle/chef Contains the classes for the Chef Job editor be/ibridge/ket

2007-08-24 10:08:00 645 1

原创 The Way BIRT Integrate with Web

There are two ways to integrate BIRT with web:Solution 1: put BIRT_HOME/run-time-x.x.x/WebViewerExample below TOMCAT_HOME/webapp, change name to "birt", then using Report Designer to design report

2007-08-22 10:16:00 503

原创 The similarity between integrating Design Engine API and integrating Report Engine API

Integrating Design Engine API Framework://Configure the Engine and start the PlatformDesignConfig config = new DesignConfig( );config.setProperty("BIRT_HOME", "C:/birt-runtime-2_1_1/birt-runtime-2_1_1

2007-08-21 21:07:00 464

原创 Create an account in Mysql

Grammer: mysql> GRANT ALL PRIVILEGES ON *.* TO username@localhost IDENTIFIED BY password WITH GRANT OPTION;Example: mysql> grant all privileges on *.* to fo

2007-08-21 10:24:00 561

原创 BIRT chart2.1

1. flash demo for charts combination: http://download.eclipse.org/birt/downloads/examples/reports/2.1/combochart/combinationchart.html2. charts2.1 wiki http://wiki.eclipse.org/index.php/BI

2007-08-17 14:46:00 429

原创 crosstab reports

Generally, We classify the crosstab reports into two categoreis: static crosstab and dynamic crosstab based on whether the number of columns in the crosstab is known at design time or at run time.

2007-08-17 14:25:00 630

原创 Configure JNDI

step1:Install JDBC Driver copy the jdbc driver jar file used by JNDI Data Source service into the /common/lib folder.step2: Declare Resource Requirements In the webapps/xxxxx/WEB-INF/web.xml f

2007-08-17 11:42:00 436

原创 driver class jar location

Error:Cannot open the connection for the driver: org.eclipse.birt.report.data.oda.jdbcReason: the driver jar is not found.Way: copy driver to WEB-INF/platform/plugins/org.eclipse.birt.report.data.oda.

2007-08-17 11:23:00 530

原创 BIRT2.2 Event handler class location

I am using BIRT2.2 for crosstab. As for previous versions, if I put the event handler class in /WEB-INF/classes, they work fine. However, they donnot act in version2.2. It is a bug. The way is

2007-08-17 11:19:00 756

转载 Oracle to_char() function

to_char() is used to convert a value to string.Case 1: The following are number examples for the to_char function. to_char(1210.73, 9999.9) would return 1210.7 to_char(1210.73, 9,999.99)

2007-08-17 09:21:00 363

原创 Eclipse Resouce Lists

1. Eclipse newsgroups :http://www.eclipse.org/newsgroups/index_all.php open "+" sign ---->click on "Newsgroup Archive"---->browse the content2. Eclipse Articles : http://www.eclipse.org/articles/

2007-08-17 08:54:00 353

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