Random Thoughts

Databases contain all different kinds of information. The booking system at an airport might be a database containing all the ticket information for a particular airline, for example.

When the clerk at the check-in desk checks a passenger in for a flight they might enter the passengers name into the computer.In the background SQL is at work.SQL is a computer language which is used to extract information from and put information into databases.So the clerk enters the passengers name, Johnson, into the computer.The computer sends a query to the database using SQL.

The query might look like this:
SELECT * FROM People WHERE Surname='Johnson'

The SQL query is asking the database, to return all the records in the database for people with the surname Johnson.
The database might return the following records:
Johnson, PaulJohnson, MaryJohnson, Matthew

SQL can be used to extract information from a database, add data, modify data and so on.The reason we use SQL is that we need some kind of language to go between the interface and the database.In my exampke, the interface is the screen the clerk uses to check-in passengers and the database contains all of the customer records.So SQL works between these to extract, modify or add records to and from the database.

When you use Yahoo Mail(say for eg), something like SQL is working in the background to update this web site.I hope my example has given you some ideas for further research and explained what SQL is used for.

Hello friends ..I have a small doubt about which countries movies are really the best (ie,what most people think). So to find out what other peoples around the world think.I have created a poll in my blog and I request you people (ie,Friends who visit my blog) to cast your vote.I've included hollywood in the options which is not a country(as i consider hollywood as american movies) .If you feel that i've excluded any possible choices...Just leave your comment in the shoutbox or send a mail to praveen2087@gmail.com... I'll include them to my poll as soon as i come across your comment...I personally consider Hollywood and Korean movies are really good and much better than other country movies...

Thank you for contributing to my blog...Stay in touch.....

Apple has cut down the production of ipod and iphones by more than 35%.According reports from Craig Berger, an analyst with FBR Research the sales of ipod and iphone have declined two times in the past 2 months.He also reported that apple is experiencing a week sell through from the fourth calendar quarter of the year 2007 till now.



Also reports conclude that ipod touch is experiencing the weakest sales compared with apples other products.The main reason for ipos touch's decline in sales are due to it's over rated price and it's use of Wi-fi for connectivity so users out of range with Wi-fi connection cannot connect online.
Berger also concluded that sales of apples imac and mac books have increased by 20%. Apple is trying expand it's Asian market as the demand for apples product in Asia has increased dramatically in 2007.