albert's blog

溝通秘訣1：駕馭型--搞定老虎主管
老虎型主管注重結果導向，他就事論事並且有冒險精神。而且老虎主管通常速度很快，與他溝通要直接說重點。

溝通秘訣2：表達型--孔雀主管
與孔雀主管可以多聊家常事務，先建立個人感情再談公事會更為順利，孔雀主管非常有創意，不喜歡太死板的教條。

溝通秘訣3：親和型--無尾熊主管
無尾熊主管重視團隊的和諧氣氛、不喜歡風險，與無尾熊主管溝通要溫和，並且給他多一點決策時間。

溝通秘訣4：分析型--貓頭鷹主管
貓頭鷹主管重視品質，給他的資料要精確、有邏輯。屬下工作要按照一定步驟，並且要注意細節要正確。

http://www.cw.com.tw/article/index.jsp?id=2910

可惜他沒提到無能型的

2009/04/16

ORA-00932: inconsistent datatypes: expected - got CLOB

As I am doing data query with distinct syntax in select clause, I got this error message:
ORA-00932: inconsistent datatypes: expected - got CLOB

This error message result from Clob limitation:

CLOBs don't work like strings. You can't ask for the LENGTH of a CLOB column, for example. You can work around this with PL/SQL calls but it isn't much fun.
LOBs are not allowed in GROUP BY, ORDER BY, SELECT DISTINCT, aggregates and JOINS

Therefore, I re-designed my database schema. Save this CLOB column into another table.

ORA-01502 Oracle Index in Unusable State

As I execute sql statement to do search, it return this message unexpectedly:ORA-01502: index 'RSDB.RESUME_PK' or partition of such index is in unusable state

Solution: rebuild this index

ALTER INDEX RESUME_PK REBUILD

After I executed this rebuild action, it turned out to be normal.

Reference
[1] http://www.mydigitallife.info/2006/01/28/ora-01502-oracle-index-in-unusable-state/

2009/04/10

Template method pattern example

http://www.slideshare.net/junyuo/template-method-pattern-example

2009/04/09

Utilize Quartz to Implement Scheduling Service

Scenario

Implementation Process

http://www.slideshare.net/junyuo/utilize-quartz-to-implement-scheduling-service

2009/04/07

PMD

PMD scans Java source code and looks for potential problems like:

Possible bugs - empty try/catch/finally/switch statements
Dead code - unused local variables, parameters and private methods
Suboptimal code - wasteful String/StringBuffer usage
Overcomplicated expressions - unnecessary if statements, for loops that could be while loops
Duplicate code - copied/pasted code means copied/pasted bugs

It can be plug-in to Eclipse, NetBeans, etc.

http://pmd.sourceforge.net/

2009/04/06

Utilize Jericho HTML Parser to Resolve NCR Problem

Agenda

What is NCR (Numeric Character Reference) ?
Scenario Description
Problem (XML with NCR)
Resolution Process
Result (NCR had been decoded)

http://www.slideshare.net/junyuo/utilize-jericho-html-parser-to-resolve-ncr-problem

2009/04/02

XML Utility: Convert DTD to XML Schema

http://www.hitsw.com/xml_utilites/

2009/02/20

Problems running dot: exit code=-1, command='dot'

As I used Doxygen to generate source code docuemt, I failed to generate graphs and got this kind of error message:

Problems running dot: exit code=-1, command='dot', arguments='"classcom_1_1htc_1_1hr_1_1tree_1_1_department_table_bean_50f82c9386b01669779a1524b380b355_cgraph.dot" -Tpng -o "classcom_1_1htc_1_1hr_1_1tree_1_1_department_table_bean_50f82c9386b01669779a1524b380b355_cgraph.png"'

I spent lots of time to resolve this odd issue, and found out its result from the wrong GraphViz version. I cannot use the latest version. As I tried graphviz-2.12.exe this version, all problems were gone. You can go to here to download this verion: http://www.graphviz.org/pub/graphviz/stable/windows/

Here is class hierarchy:

Here is call graph:

albert's blog

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2009/09/13

Telerik Reporting– Quick Start (Part 2)

Telerik Reporting– Quick Start (Part 1)

Quartz.NET - Enterprise Job Scheduler for .NET Platform

Logging Services for .net - log4net

RandomAccessFile Quick Start

2009/07/21

Rule Engine: Drools .Net

2009/06/23

GridBagLayout Quick Start

2009/06/04

JPA Code Generation via MyEclipse

2009/06/03

A Short Java Socket Tutorial

2009/05/27

SchemaSpyGUI Quick Start

A Short Java RMI Tutorial

和四種主管溝通的小秘訣