Technology Questions

Cocoa is for Mac App development  and cocoa touch is for apples touch devices - that provide all development environment 

To resolve all the side-effects in the program, the sequence point should not be overlapped.

Array                                              Descriptions
--------------------------------           -----------------------------------
$_FILES['userfile']['name']              The original name of the file on the client machine.

$_FILES['userfile']['type']                The MIME type of the file if the browser provided 

                                                   this information. An example would be "image/gif".

$_FILES['userfile']['size']                The size, in bytes, of the uploaded file.

$_FILES['userfile']['tmp_name']      The temporary filename of the file in which the

                                                  uploaded file was stored on the server.

$_FILES['userfile']['error']              The error code  associated with this file upload.

C++ allows us to parameterize directly three kinds of entities through templates: types, constants, and templates.

The container manages the storage space for its elements and provides member functions to access them, either directly or through iterators which reference objects with similar properties to pointers.

Named PL/SQL blocks of code which can be invoked using parameters are called PL/SQL sub programs.

Advantages of PL/SQL subprograms are

- The application makes a single call to the database to run a block of statements which improves performance against running SQL multiple times. This will reduce the number of calls between the database and the application.

- PL/SQL is secure since the code resides inside the database thus hiding internal database details from the application. The application will only make a call to the PL/SQL sub program

- PL/SQL and SQL go hand in hand so there would be no need of any translation required between PL/SQL and SQL.

SQL keyword ORDER BY is used to sort the result-set.

By providing callback function. Callback function gets called whenever corresponding event triggered.