Search Interview Questions
| More than 3000 questions in repository.|
There are more than 900 unanswered questions.
Click here and help us by providing the answer.
Have a video suggestion.
Click Correct / Improve and please let us know.
|Solution - Interview Questions and Answers for 'Db exceution plan' - 1 question(s) found - Order By Newest|
|Ans. In first case, there would be 2 DB calls in worst case and 1 in best case. In 2nd approach there will be always 2 DB calls.|
Decision on the approach should depend on the following considerations -
1. How costly is the call to DB ? Are we using indices , hibernate etc
If calls to DB are costly , 1st approach should be the choice.
2. Exception Book keeping load upon exception.
The benefit of saving 1st call in approach 1 should be bigger than the Book keeping for the exception.
3. Probability of the exception in first apparoach.
If the DB Table is almost empty, it makes sense to follow Approach 1 as majority of the 1st calls will pass through without exception.
|Help us improve. Please let us know the company, where you were asked this question :|
|Like Discuss Correct / Improve  database   insert-update   db exceution plan   db strategy   design   architecture   technical lead|
|What is a Lambda Expression ? What's its use ?|
|What is Lazy Initialization in Hibernate ?|
|Explain Flow of Spring MVC ?|
|If you are given a choice to use either ArrayList and LinkedList, Which one would you use and Why ?|
|What are the ways to avoid LazyInitializationException ?|
|Difference between first level and second level cache in hibernate ?|
|What is session tracking and how do you track a user session in servlets?|
|How does volatile affect code optimization by compiler?|
|Can you provide some implementation of a Dictionary having large number of words ?|
|What are the benefits of using Spring Framework ?|