Technology Questions

Q:

What are the different ways to Declare and Instantiate an object in Visual Basic 6?

Answer

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 

Report Error

View answer Workspace Report Error Discuss

0 3001
Q:

What are the important topologies for networks?

Answer

BUS topology:


In this each computer is directly connected to primary network cable in a single line.


 


STAR topology:


In this all computers are connected using a central hub.

Report Error

View answer Workspace Report Error Discuss

2 2997
Q:

What is sqlcode -811?

Answer

SELECT statement has resulted in retrieval of more than one row.

Report Error

View answer Workspace Report Error Discuss

0 2995
Q:

Which JavaScript objects are not accessible to web worker?

Answer

Following JavaScript objects are not accessible to web worker: 


- The window object


- The document object


- The parent object

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

0 2985
Q:

If an array with name as "names" contain three elements, then how will you print the third element of this array?

Answer

Print third array element document.write(names[2]);

Note:- Array index starts with 0.

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

0 2984
Q:

Define a temp table.

Answer

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

Report Error

View answer Workspace Report Error Discuss

Subject: SQL

1 2979
Q:

How can we increase the execution time of a php script?

Answer

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.

Report Error

View answer Workspace Report Error Discuss

Subject: PHP

0 2976
Q:

Which namespaces in .NET are used for XML?

Answer

The System.xml.dll is the real physical file, which contains the XML implementation. Some of the other namespaces that allow .NET to use XML are as follows:


    


      =>  System.Xml

      =>  System.Xml.Schema

      =>  System.Xml.XPath

      => System.Xml.Xsl

Report Error

View answer Workspace Report Error Discuss

Subject: .NET

1 2975