IntroductionAt work we have a Core 2 demo running Windows Vista. This demo is not connected to the network because we don't want people coming in and changing the background image to display something obscene or pornographic. There is a neat little trick that I found one day while trying to figure out how I could reset the time until the user had to activate Windows Vista.
What to DoWhen you log into Windows and your grace period has expired, you can still use Windows with reduced functionality. In reduced functionality mode, you are still able to use IE7.
When you select data, there’s a good chance that you’re looking for something specific. In using the SELECT statement you can attach a WHERE clause to limit the data that you are looking through. If you’re very good and know what you’re looking for then you can use the WHERE clause to find exactly what you want.
Creating a user
Like table names and columns, a user name must follow the same rules. There is one minor difference. A user name can contain a dollar sign.
CREATE USER username [ IDENTIFIED BY password ] [ PASSWORD EXPIRE ]
A database object is anything that has a name and a defined structure. Other database objects that are used in Oracle 10g are sequences, indexes, and synonyms.