Technology Questions

C requires all the variables to be declared at the beginning of a scope but in c++ we can declare variables anywhere in the scope. This makes the programmer easier to understand because the variables are declared in the context of their use.

:: is the scope resolution operator

$message is a variable with a fixed name. $$message is a variable whose name is stored in $message. 

If $message contains "var", $$message is the same as $var.

Return Code in JCL can b obtained by the use of COND paramater...it is used to know the return codes of previous steps.

One can use simple conditions like >= and <=, or use between/and but the trick here is to know your exact data type.

- Sometimes date fields contain time and that is where the query can go wrong so it is recommended to use some date related functions to remove the time issue. In SQL Server common function for accomplishing the task datediff () function.

- Interviewees also have to be aware of different time zones and server time zone.

-To increase query performance you may still want to use between however you should be aware of proper format you should use if not it might misbehave during filtering.

The 4 key phases of business development are: Forming, Storming, Norming and Performing.

Cloud computing is a metaphor used for internet. It provides on-demand access to virtualized IT resources that can be shared by others or subscribed by you. It provides an easy way to provide configurable resources by taking it from a shared pool. The pool consists of networks, servers, storage, applications and services.