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.

$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.

:: is the scope resolution operator

HTML language is a set of markup tags. The code used to specify the formatting are called tags. Markup languages are designed for the processing, definition and presentation of text. The language specifies code for formatting, both the layout and style, within a text file. 

HTML is an example of a markup language to improve the appearance of, and link text with data on the internet.

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.

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