1 How to Unlock Oracle Client -Oracle 10g

By default all the sample schemas/users comes locked in oracle 10g.
You can use any of the two methods for unlocking user.

1. Login to sqlplus as dba/sysdba and use the following command:

ALTER USER SCOTT ACCOUNT UNLOCK;

2. Using Oracle Enterprise Manager (GUI Tool).
Login as dba/sysdba user. For your database instance, goto Administration and select Users (In Schema--Users & Previleges section). Select the user you would like to unlock (Scott in this case) and Choose the action as unlock and click go.

0 What is the Size Limit for the Oracle Spool File

        The limit in Oracle for spool file is 2 GB. And there will be a performance impact on the machine where you generate the spool file if the file is large because of frequent IO operations.So, spooling in a client machine will affect its performance only and hence the DB Server will not have any performance impact.

        The limit above mentioned is true for 32-bit version. You can generate a much larger file using 64-bit versions. Spooling can affect the I/O operations on the server though it is a pure client thing. The arraysize parameter can affect the I/O (logical mostly).

Make sure you set the correct arraysize parameter while you extract.

2 What is Most Powerful Processor In the World?

As of now, I would say, the new Intel Core i7 980x 6 core is the best single chip (multicore) processor on the market outside of any Xeon Class.
Of course, there are supercomputers in the world, the US Defense Department, the Oceanic and Atmopsheric Administration, National Weather Forecasting, has supercomputers which have THOUSANDS of CPU's ganged together in parallel. What makes supercomputers are multiple cpu chips in parallel. So when I say the i7 980x, I mean a motherboard with ONE CPU socket.
I am talking about what is available for a single/corparate buyer for building a high end single chip (multicore) cpu based computer. It is the Intel Core i7 980x 6 Core CPU.

0 Tips to Protect Your Laptop Screen / LCD Monitor

For better health of your laptop LCD monitor, keep the following things while you dealing it.

• Never pick up a laptop by holding the LCD, and never push, squeeze or otherwise apply force to the LCD or to its surrounding screen. This will prevent accidental damage to the LCD from occurring, and possible exposure to the liquid contained within display.


• Do not touch the Liquid Crystal Display if found cracked or damaged, the display screen has a liquid which could either spill out or leak out of the damaged area.


• Do not place heavy objects on top of the laptop and never allow heavy objects to drop onto the Laptop, to protect it from damage.


• Do not wipe the surface of the LCD with a wet cloth. Always use a soft, dry cloth, instead.


• Do not place any object (notepads / paper documents / secure ID cards, etc.) between the keyboard and LCD screen while closing the laptop.


• Do not stuff the laptop bag with items like books, papers, etc. This would result in applying pressure which in turn would cause damage to the LCD screen.

0 How to Protect Laptop Screen LCD

For better health of your laptop LCD monitor, keep the following things while you dealing it.

• Never pick up a laptop by holding the LCD, and never push, squeeze or otherwise apply force to the LCD or to its surrounding screen. This will prevent accidental damage to the LCD from occurring, and possible exposure to the liquid contained within display.


• Do not touch the Liquid Crystal Display if found cracked or damaged, the display screen has a liquid which could either spill out or leak out of the damaged area.


• Do not place heavy objects on top of the laptop and never allow heavy objects to drop onto the Laptop, to protect it from damage.


• Do not wipe the surface of the LCD with a wet cloth. Always use a soft, dry cloth, instead.


• Do not place any object (notepads / paper documents / secure ID cards, etc.) between the keyboard and LCD screen while closing the laptop.


• Do not stuff the laptop bag with items like books, papers, etc. This would result in applying pressure which in turn would cause damage to the LCD screen.