Technology Questions

:As these are standard exceptions, they need to be defined in the standard block, So it is defined under namespace std.

- DBRM stands for Database Request Module

- The output of pre-compile process is represented as DBRM

- The SQL statements are extracted from the host language by the pre-compiler

• //               is a single line comment
• /*  */          is commenting on one or more lines
• /** */         is documentation comment

       => Windows Installer

       => ClickOnce

       => XCOPY

       => Copy Web Site

       => Publish Web Site tool

When two independent processes contend for the same resource or the resources reserved by one another, it is called a deadlock. -911 and -913 are the SQLcode for a deadlock.

Following are the steps to create a simple AD rotator script without using database in PHP:

- All the ad’s can be collected in one place and be displayed randomly.rand() function can be used for this purpose.

- In order to NOT use any database, a flat file can be used to store the ad’s.

- In order to store the Ad’s information (HTML code), a flat file say “ad.txt” can be created.

- The random number can be stored in a variable 

$result_random=rand(1, 100);

- Conditions can be checked to display the ad’s.

if($result_random<=70)

{

      echo "Display ad1";

}

Difference between undeclared and undefined variables is defined as

Undeclared variables are those that do not exist in a program and are not declared. If the program tries to read the value of an undeclared variable, then a runtime error is encountered.

Undefined variables are those that are declared in the program but have not been given any value. If the program tries to read the value of an undefined variable, an undefined value is returned.