Read the article for a more in depth approach including screenshots, but the basic steps are

1. Switch to ‘Phone List’ view on the Contact screen
2. Add the ‘Created’ column to the view and sort by it
3. Delete all the contacts that were created on a later date

Of course it’s more sophisticated than that, but that’s the basic idea. Anyway, saved me a bunch of time.

Go read the article for a more thorough explanation bust basically there are two ways to see the text of a query.

1. Add the ‘result=yourstruct’ attribute to your query tag and a bunch of meta data about the query will be put in yourstruct
2. Call the function getMetaData() on the query and you’ll get a bunch of information about the column names and types of the query

The full article explains a lot more about the two approaches. This is a great tip especially when you don’t have access to a server’s administration application.

• “Developers won’t have to worry about getting caching setup correctly, as we will do that for you
• If another application uses the same library (much more likely), they there is a much better chance that it will be already caching on the users machine
• The network and bandwidth of the users systems will not be taxed.”

They currently are hosting five of the more popular libraries jQuery, prototype, script.aculo.us, MooTools and dojo. Depending on how you call the library you can get a specific version or just the most recently available one. If this convention catches on then potential when a new person enters your site they may already have the library cached from a visit to another site.

There are two ways to access the libraries at Google. First, you can access them using the standard <script src=”..”> tag. So to include jQuery you would include the following line in your page:

<script src=”http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js”></script>

Second, you can use Google’s own AJAX API Loader. Here’s the example from the site:

<script src=”http://www.google.com/jsapi”></script>

<script>

// Load jQuery

google.load(”jquery”, “1″);

// on page load complete, fire off a jQuery json-p query

// against Google web search

google.setOnLoadCallback(function() {

$.getJSON(”http://ajax.googleapis.com/ajax/services/search/web?q=google&;v=1.0&;callback=?”,

// on search completion, process the results

function (data) {

if (data.responseDate.results &&

data.responseDate.results.length>0) {

renderResults(data.responseDate.results);

}

});

});

</script>

There is a full set of usage guidelines on the documentation site which further explain how to use the loader. You can specify to what level of the version you want of the library (”1″, “1.1″, or “1.1.2″) and the loader will return the most relevant version.

This is a nice validation of the usefulness of frameworks in developing and will help remove some barriers of entry to site creation. I’m excited to give this a try in my next project. One thing to note though, is the files are hosted at an outside site. Now Google is in the business of continuous uptime, but on the off chance that the service goes down your site could go down with it. Also developers on internal company projects may not be able to access an outside service which would also invalidate this method.

So if I have a job 10045 and would like to get rid of it I would call:

begin

DBMS_JOB.REMOVE(10045);

end;

Also, too check get an idea of how much longer an existing job has to run you can query the session table:

SELECT round(sofar*100 / totalwork) as percent_done,

       round((totalwork - sofar) * (((last_update_time - start_time) *

       24*60)/sofar)) as min_remaining,

       round(elapsed_seconds/60) as elapsed_time

FROM v$session_longops a

WHERE SID = {the SID running the job}

You can find the SID of the running job using the following query:

select * from v$session

where status=‘ACTIVE’

And look for the username that is running the query.

This is very elementary stuff that a lot of programmers probably already know, but still worth mentioning. I’ve also been doing some work the the DBMS_APPLICATION_INFO package which lets your application update its status for others to see.

Short story: This is an awesome program and helped me free up 35GB.

Long story: I was able to find a program whose temp folder wasn’t getting cleaned up resulting in a lot of extra junk. There is no way I could have found this poking around (it was in a pretty obscure location) but it showed up right away in WinDirStat. And best of all the price is right! Free.

Check it out for yourself.