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 3198
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 3196
Q:

HTML documents are saved in

A) Machine language codes B) ASCII text
C) Special binary format D) None of the above
 
Answer & Explanation Answer: B) ASCII text

Explanation:

Word and WordPad can save documents as ASCII text and HTML, but this approach can lead to problems. NotePad should launch with a new document open.

From the File pull-down menu, Select "Save As," save the file to the Desktop, and name the file using the ".html" extension (e.g., "home.html").

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Q:

Which among the following validators allows checking if data of one control match with other control?

A) RangeValidator B) CompareValidator
C) RequiredFieldValidator D) None
 
Answer & Explanation Answer: B) CompareValidator

Explanation:

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

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Filed Under: .NET
Job Role: Software Architect

1 3185
Q:

What is the purpose of garbage collection in Java, and when is it used ?

Answer

The purpose of garbage collection is to identify and discard those objects that are no longer needed by the application, in order for the resources to be reclaimed and reused.


 

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Subject: Java

1 3182
Q:

What is sqlcode -811?

Answer

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

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0 3181
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.

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Subject: Web Technology

0 3181
Q:

How to define a constant variable in Java?

Answer The variable should be declared as static and final. So only one copy of the variable exists for all instances of the class and the value can't be changed also.
static final int PI = 2.14; is an example for constant.
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Subject: Java

1 3180