Month: February 2012

Following are some good articles/tutorial on OO JavaScript:

• http://killdream.github.com/blog/2011/10/understanding-javascript-oop/
• http://mckoss.com/jscript/object.htm
• http://nefariousdesigns.co.uk/archive/2006/05/object-oriented-javascript/
• http://msdn.microsoft.com/en-us/magazine/cc163419.aspx

http://javascript.crockford.com/→ Continue reading “JavaScript Resources”

Very handy ECMAScript 5 compatibility table for the JavaScript programmer:

http://kangax.github.com/es5-compat-table/→ Continue reading “ECMAScript 5 Compatibility Table”

Following is a quick example of how to generate an MD5 Hash (SHA-256, SHA-512 or any other supported hash algorithm) of either a String or the byte value of a long.  You should be able to adapt for your particular application:

package com.ryanchapin.util;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class HashGenerator {

    public static String createHash(long input, String hashAlgorithm) {
        // Generate a byte array from the long
        // Extract the byte value → Continue reading “Creating a MD5 Hash in Java From Either a String or the Byte Value of a Long”

http://plsql-tutorial.com/→ Continue reading “Great PL/SQL Overview and Tutorial”

Here is a query with which you can see all of the active sessions on an Oracle database:

SELECT SID, Serial#, UserName, Status, SchemaName, Logon_Time
FROM V$Session
WHERE
Status=’ACTIVE’ AND
UserName IS NOT NULL;→ Continue reading “List All Active Sessions in Oracle 11g”