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Interview Questions and Answers for 'Nagarro' - 3 question(s) found - Order By Newest

Very frequently asked if being interviewed for hibernate. Frequently asked in Tata Consultancy (TCS) and Overstock.com
  Q1. Difference between load and get ?Hibernate
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Ans. If id doesnt exist in the DB load throws an exception whereas get returns null in that case.get makes the call to DB immediately whereas load makes the call to proxy.

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   Like      Discuss      Correct / Improve     hibernate     Overstock.com  Nagarro  Anthem  Tata Consultancy (TCS)  Nucleus Software Exports  CDK Global  Dell  Capgemini  Persistent Systems  HCL Technologies  Nagarro  Sears  CDK Global  Oracle  Nucleus Software Exports  CACI International      basic        frequent


Related Questions

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  What are the advantages of Hibernate ?
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  Please specify in what sequence the objects of following classes will be created ?

Session , SessionFactory, Query , Configuration


  Q2. What is a self Join and give an example of a self Join ?

or

What is self Join and What is it's purpose ?
Database2016-06-30 20:13:35

Ans. When a Table Join itself , it's a Self Join. For example - we like to know the pair of department names where first dept has lesser employees than the later.

Select D1.name , D2.name from Dept D1, Dept D2 where D1.employee_count < D2.employee_count

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   Like      Discuss      Correct / Improve     sql  joins  self join  self-join  Pair of employee names with first having lesser salary than later  Pair of department names where first dept has lesser employees than the later     Accenture  West Monroe Partners  Oracle  eBay  Impetus Technologies  Bank of America  Fannie Mae  Wize Commerce  Kleward Consulting  Pyramid Consulting  Interra Information Technologies  Trigent Software  Xtreme Media  IGATE  Nagarro  Six Sigma  Nityo Infotech  Fujitsu  BlazeClan  Twist Bioscience  Invoyent  Cognizant (CTS)  i2c  Capgemini   Blazeclan      basic        frequent


Related Questions

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  Difference between Inner and Outer Join ?
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  Write an SQL to find all records having all upper case alphanumeric characters in a field ?
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  Do you know of any DB statement that can be used if we would like to insert multiple rows into a table ?


 Q3. What is serialVersionUID ?Core Java2016-12-20 17:26:52

Ans. Everytime an object is serialized the java serialization mechanism automatically computes a hash value by passing the meta information for the class. This id is used during deserialization to verify that the sender and receiver of a serialized object have loaded classes for that object that are compatible with respect to serialization

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   Like      Discuss      Correct / Improve     serialVersionUID  serialization     Tieto  Priceline.com  Nagarro      expert        rare


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