Technology Questions

include()
The include() function takes all the content in a specified file and includes it in the current file. If an error occurs, the include() function generates a warning, but the script will continue execution.

include_once()
File will not be included more than once. If we want to include a file once only and further calling of the file will be ignored then we have to use the PHP function include_once().

require()
The require() function is identical to include(), except that it handles errors differently. The require() generates a fatal error, and the script will stop.

require_once()
The required file is called only once when a page is open and further calling of the file will be ignored.

One of the major component of ADO.NET is the DataSet object, which always remains disconnected from the database and reduces the load on the database.

• SBJson framework is supported by iOS.


• It is a JSON parser and generator for Objective-C (Objective-C is the primary programming language you use when writing software for OS X and iOS. It is a superset of the C-programming language and provides object-oriented capabilities and a dynamic runtime).


• SBJson provides flexible API's and additional control that makes JSON handling easy.

A default is a value which will be used by a column, if no value is supplied to that column while inserting data.

Yes, IDENTITY and TIMESTAMP columns are free from the bounds of default.

In a nutshell, a temp table is a temporary storage structure. It means you can use a temp table to store data temporarily so you can manipulate and change it before it reaches its destination format.

In table_user.gender column change ‘male to female’ and ‘female to male’ in one SQL statement.

UPDATE table_user

SET gender =

CASE gender

WHEN ‘male’ THEN ‘female’

WHEN ‘female’ THEN ‘male’

ELSE gender

END

CompareValidator  allows checking if data of one control match with other control

Dim obj as OBJ.CLASS with eitherSet obj = New OBJ.CLASS orSet obj = CreateObject(OBJ.CLASS?) orSet obj = GetObject( , OBJ.CLASS?)orDim obj as New OBJ.CLASS 

By the use of void set_time_limit(int seconds)

Set the number of seconds a script is allowed to run. If this is reached, the script returns a fatal error. The default limit is 30 seconds or, if it exists, the max_execution_time value defined in the php.ini. If seconds is set to zero, no time limit is imposed.

When called, set_time_limit() restarts the timeout counter from zero. In other words, if the timeout is the default 30 seconds, and 25 seconds into script execution a call such as set_time_limit(20) is made, the script will run for a total of 45 seconds before timing out.