Recent Notes

Displaying keyword search results 1 - 12
Created by freyo on February 06, 2013 21:10:47    Last update: February 06, 2013 21:12:18
I have an old Samung phone to be used as a toy. After restoring back to factory image and power on, I was stuck at the activate service screen. Unfortunately, the four corner magic touch did not work. So I did quite a bit of digging and this is what worked on my Samsung Continuum: Press emergency call button, then at the dialer, press * # 8 3 7 8 6 6 3 3 , press the Home key From the home screen, tap phone icon, Dial * # 2 2 7 4 5 9 2 7 Enter SPC code: ______ displays tap in white box to show virtual keyboard, enter 6 digit code (default: 000000), tap OK Select “Hidden menu Enable”, tap OK From...
Created by magnum on October 22, 2012 20:03:05    Last update: October 22, 2012 20:03:05
First, the test command that sleeps random number of seconds ( sleeper.sh ): #!/bin/bash stime=$[$RANDOM % 20] sleep $sti... As comparison, synchronous pipe code: #include <sys/wait.h> #include <stdio.h> #in... Asynchronous pipe code: #include <sys/wait.h> #include <stdio.h> #in...
Created by Fang on November 10, 2011 09:26:12    Last update: November 10, 2011 09:26:12
Syntax highlighted XML schema for JSF 2.0 Application Configuration Resource File ( faces-config.xml ). Almost 3000 lines! <?xml version="1.0" encoding="UTF-8"?> <xsd:sch...
Created by meiu on February 09, 2010 03:26:14    Last update: March 31, 2011 09:00:19
Simple JDBC code for Oracle. import java.sql.*; public class JDBCHelloWo...
Created by Fang on August 16, 2010 21:44:41    Last update: August 16, 2010 22:01:46
The tags <sql:query> Queries a database. Syntax: <sql:query sql="sqlQuery" var="varName" [scope... or, put the query within the element body: <sql:query var="varName" [scope="{page|req... Attributes: Name Dynamic? Type Description sql true String SQL query statement. dataSource true javax.sql.DataSource or String Data source associated with the database to query. A String value represents a relative path to a JNDI resource or the JDBC parameters for the DriverManager class. maxRows true int The maximum number of rows to be included in the query result. If not specified, or set to -1, no limit on the maximum number of rows is enforced. startRow true int The returned Result object includes the rows starting at the specified index. The first row of the original query result set is at index...
Created by Dr. Xi on June 20, 2010 14:35:17    Last update: June 20, 2010 14:35:17
This XML signature validator comes from the Apache XML Security project. It validates the signature according to the core validation processing rules . It does not verify that the key used to generate the signature is a trusted key. You can override the KeySelector class to make sure that the signing key is from a trusted store. import javax.xml.crypto.*; import javax.xml.cry...
Created by Dr. Xi on February 24, 2010 21:13:05    Last update: February 24, 2010 21:19:54
This program demonstrates the use of the java.nio package to implement a single thread echo server. import java.io.IOException; import java.net.Ine...
Created by Dr. Xi on January 07, 2010 23:40:28    Last update: February 09, 2010 03:24:35
This is a utility to generate SQL insert statements for Oracle for one table, or a set of tables. It doesn't cover all possibilities but should be good enough for most cases. import java.io.*; import java.sql.*; import ... To generate insert statements for multiple tables, simply put the table names in a file, one per line, and use the -f switch.
Created by Dr. Xi on January 07, 2010 23:56:00    Last update: January 07, 2010 23:56:00
This is a utility that generates a script to grant privileges for an existing schema for Oracle. import java.io.*; import java.sql.*; pub...
Created by Dr. Xi on January 07, 2010 23:51:44    Last update: January 07, 2010 23:53:57
This is a utility to generate a "create synonym" script for Oracle for an existing schema. import java.io.*; import java.sql.*; pub...
Created by Dr. Xi on January 07, 2010 23:47:36    Last update: January 07, 2010 23:47:36
This is a utility to generate a "create role" script for Oracle for an existing schema. import java.io.*; import java.sql.*; pub...
Created by Dr. Xi on April 21, 2009 22:54:39    Last update: April 21, 2009 22:54:39
Update a field to empty string makes it NULL in Oracle: update person set middle_initial = '' where id = 5... Select with empty string returns nothing: select * from person where id = 5 and middle_initi... You have to use NULL for the field you previously set to empty string to get the original row: select * from person where id = 5 and middle_initi...