Technology Questions

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.

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Subject: PHP

0 3034
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

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Subject: SQL

1 3033
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 

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0 3030
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

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Subject: .NET

1 3028
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.

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2 3027
Q:

What do you mean by stack unwinding?

Answer

Stack unwinding is a process of calling all destructors for all automatic objects constructed at run time when an exception is thrown. Destructors are called between the places where the exception was thrown and where it is caught.

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Subject: C++

0 3021
Q:

Which of the following is not a relational database?

A) 4th Dimension B) Reflex
C) dBASE IV D) FoxPro
 
Answer & Explanation Answer: B) Reflex

Explanation:
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Filed Under: SQL
Job Role: Database Administration , IT Trainer

1 3019
Q:

Explain 5-4-3 rule

Answer

In a Ethernet network, between any two points on the network, there can be no more than five network segments or four repeaters, and of those five segments only three of segments can be populated.

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1 3016