A misunderstood genius

Add UNIQUE constraint to column in MySQL

punarjani — Tue, 06 Dec 2011 04:34:51 +0000

Add UNIQUE Constraint

ALTER TABLE

ADD CONSTRAINT UNIQUE ()

Remove UNIQUE Constraint

ALTER TABLE

DROP INDEX ()

To add through Query browser GUI .

Select the Table , right click and edit
Then select the column to add the unique constraint , select “Indices” tab next to “Column details” , click the plus (+) button and add the constraint you need.

Could not find the main class. Program will exit.

punarjani — Tue, 06 Dec 2011 04:28:52 +0000

Created a Test class with main() in Eclipse which ran successfully for a whole day. The very next day when I wanted to run the same application so that I can test my pet project..there goes the main in some hole.

Could not find the main class. Program will exit.

Tried a lot to fix .. Still have no clue what went wrong. But Creating another class with main method and copying the content from the non working class to this worked. Another lousy learning..But again that works for me!!

Unexpected Error Initializing Deployer: weblogic.management.ManagementException

punarjani — Wed, 12 Jan 2011 12:43:24 +0000

Weblogic Exception

[java] Unexpected Error Initializing Deployer: weblogic.management.ManagementException: [Deployer:149163]The domain edit lock is owned by another session in non-exclusive mode - this deployment operation requires exclusive access to the edit lock and hence cannot proceed. If you are using "Automatically Aquire Lock and Activate Changes" in the console, then the lock will expire shortly so retry this operation.

Solution.

Search and delete all the .lok files from weblogic folder ( *.lok )

Count open connections for a process – SOLARIS

punarjani — Thu, 14 Oct 2010 16:49:20 +0000

Had an issue in SIT server , where all the connections of the MQManager server got exhausted.

This was because some process was holding the entire available connections and not releasing it.

The following code finds all the process id’s for a particular user and finds the count of all connections opened by each of that processes . This will be logged to a file.

username – the user name for which the process belongs
/folder/data.txt – the file which stores process id’s.
result.txt – results with PID – COUNT generated
AF_INET 127.0.0.1 – denotes the server to which connections are made
#!/bin/bash ps -eaf -u username -opid > /folder/data.txt echo > result.txt while IFS= read -r file do [ -f "$file" ] && rm -f "$file" cnt=$(pfiles $file |egrep 'AF_INET 127.0.0.1' | wc -l) if [ $cnt -ne "0" ] then echo $file $cnt >> result.txt fi done < "/folder/data.txt"

This script helped me zero in on the process holding up all the connections

~HTH

Java , Unix & Spanish Characters

punarjani — Thu, 30 Sep 2010 13:59:41 +0000

Had a problem with Spanish Characters , JDK1.6 , Oracle 10g in Unix Environment.

The country name “Panamá” when retrieved from database was displayed in application log with a question mark (?) instead of “á” .
When connecting to DB with sqlplus from Unix box and viewing the value using select query was also displaying the same question mark.

The character set of DB was UTF8 which could store Spanish characters properly.
So where is the problem??…
When connecting to DB with NLS_LANG set to WE8ISO8859P1 showed proper Spanish characters in place. So the issue was not at the DB end.

Our java application was getting screwed up for some strange reasons.
Solution to the issue was to start the java application with correct file.encoding parameter.
Unix box was having the default file.encoding US-ASCII which will not handle Spanish characters properly.

So starting application as : java -Dfile.encoding=ISO-8859-1 would override the default and use the correct character set correctly which solved the issue.

Move/Rearrange HTML table rows

punarjani — Fri, 10 Sep 2010 03:30:33 +0000

A simple javascript solution for moving html table rows up/down on click of an image.

function moveUp(node){

var changeNode;

var parent;

if(node.rowIndex!=0){

changeNode=getNextRow(-1,node.rowIndex);

parent = node.parentNode;

parent.insertBefore(node,changeNode);

}

function moveDown(node){

var changeNode;

var parent;

var ln = document.getElementById(“myTable”).rows.length;

if(node.rowIndex!=ln-1){

changeNode=getNextRow(1,node.rowIndex);

parent = node.parentNode;

parent.insertBefore(changeNode,node);

}

function getNextRow(diff,selectedRowIndex){

var table = document.getElementById(“myTable”);

var cnt;

for (var i = 0, row; row = table.rows[i]; i ++) {

if(row.rowIndex==selectedRowIndex){

cnt = i+diff;

return table.rows[cnt];

}

First Row
Second Row
Third Row
Fourth Row

~HTH

Samsung Jet S8003 . Add / Remove from Reject List

punarjani — Wed, 19 May 2010 15:24:57 +0000

Just adding a number to Reject List alone won’t work with Samsung Jet S8003.
You need to activate the function from here.
Settings ->Application Settings->Call->All Calls->Auto Reject
Activation On / Off.
To remove a number from auto reject can also be done here.

Quote

punarjani — Wed, 10 Jun 2009 15:31:00 +0000

Whether we wake or we sleep,

Whether we carol or weep,

The Sun with his Planets in chime,

Marketh the going of Time.

~Edward Fitzgerald

Creating Microsoft Office Outlook 2007 Signatures when New Signature option is disabled.

punarjani — Fri, 17 Apr 2009 09:09:50 +0000

The place where I work , we have company default signature for all the Outlook Messages we create.
I always wanted to add more information to that signature or create another project specific signature for my mails.

But the Tools->Options->Mail Format->Signatures->New Option is disabled in my Outlook.

Following is a workaround that I found to create/edit new/existing signature in Outlook 2007.

Additional tools that I used is Microsoft Office Word 2007 .

Create new Signature
——————————
Open MS Word and create a good looking signature of your choice with all the formatting , pictures , colours that you need.

Create a folder in your desktop ( eg: “My Signature” ) and save your newly created Word document to that folder.

Save the Word document in three formats from MS Word. Select File -> Save As

Save as -> Web Page
Save as -> Rich Text Format
Save as -> Plain Text [When asked for Text Encoding : select default , ie Windows ( Default )]

Save the file with same name ( eg: MySignature.txt , MySignature.rtf, MySignature.htm ).
Microsoft Word will create an addictional folder when you save a document as Web Page for pictures and the styles for that page. Which will be _files folder.

So now you have three files with same name and a folder with you. Copy these files and folders ( not the directory you created , just the files and folders ) to

C:\Documents and Settings\\Application Data\Microsoft\Signatures

This is the place where Outlook keeps its signatures.

Edit existing Signature
———————————

C:\Documents and Settings\\Application Data\Microsoft\Signatures

Browse to the folder specified above , right click on the file ( will be same as your Signature name ) and select Edit. If you have Microsoft Office installed in your machine the document should open up in Microsoft Word. Do edit all the three formats of your signature , ie txt,rtf and htm which is available inside the Signatures folder.

Now you should be able to see your new signature listed for selection in your Outlook. Good Luck!

Checkbox selection logic

punarjani — Sun, 30 Nov 2008 12:00:41 +0000

This js restricts the selection from a group of checkboxes to four. If a fifth one is selected , then the first one whichever was selected will be unchecked.

A combination of js and jQuery.

// Restricting the vehicle selection to FOUR – Start
var vehList=new Array();
vehList[0]=””;
vehList[1]=””;
vehList[2]=””;
vehList[3]=””;

var vehObjList = new Array();
vehObjList[0]=””;
vehObjList[1]=””;
vehObjList[2]=””;
vehObjList[3]=””;