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Oracle Interview Answers

What are the various types of queries?The types of queries are:Normal QueriesSub QueriesCo-related queriesNested queriesCompound QueriesWhat is a transaction?A transaction is a set of SQL statements between any two COMMIT and ROLLBACK statements.What is implicit cursor and how is it used by Oracle?A.
2 min
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PHP interview answers

What does a special set of tags do in PHP?The output is displayed directly to the browser.What’s the difference between include and require?It’s how they handle failures.
2 min
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MySQL Interview Answers

How do you start and stop MySQL on Windows?net start MySQL, net stop MySQLHow do you start MySQL on Linux?/etc/init.d/mysql startExplain the difference between MySQL and MySQLi interfaces in PHP?mysqli is the object-oriented version of mysql library functions.What's the default port for MySQL Server.
2 min
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SAP Interview Answers

What is ERP?ERP is a package with the techniques and concepts for the integrated management of business as a whole, for effective use of management resources, to improve the efficiency of an enterprise.
4 min
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Perl interview answers

How do you know the reference of a variable whether it is a reference, scaller, hash or array?There is a 'ref' function that lets you knowWhat is the difference between 'use' and 'require' function?Use: 1.
2 min
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C++ Interview Answers

What is the difference between C & C++?C makes use of structures, function concepts, pre-processor statements, pointer and some build in function etc.
3 min
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Linux Interview Answers

Explain the difference between a static library and a dynamic library?Static library is linked into the executable, while a dynamic library (or shared object) is loaded while the executable has started.How do you create a static library?If you have a collection of object (.o) files, you can do it by.
1 min
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Apache Interview Answers

On a fresh install, why does Apache have three config files - srm.conf, access.conf and httpd.conf?The first two are remnants from the NCSA times, and generally you should be ok if you delete the first two, and stick with httpd.conf.What does apachectl graceful do?It sends a SIGUSR1 for a restart, a.
2 min
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Windows Sysadmin Interview Answers

What are the required components of Windows Server 2003 for installing Exchange 2003?ASP.NET, SMTP, NNTP, W3SVCWhat must be done to an AD forest before Exchange can be deployed?Setup /forestprepWhat Exchange process is responsible for communication with AD?DSACCESSWhat 3 types of domain controller d.
2 min
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C# Interview Answers

Can multiple catch blocks be executed? No, once the proper catch code fires off, the control is transferred to the finally block (if there are any), and then whatever follows the finally block.What is the .NET datatype that allows the retrieval of data by a unique key? HashTable.What is the advantag.
2 min
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Java Interview Answers

What is a transient variable?A transient variable is a variable that may not be serialized.What is the difference between Abstract class and Interface?An abstract class may contain code in method bodies, which is not allowed in an interface.
3 min
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