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.
|Database - Interview Questions and Answers for 'Capitalone' - 1 question(s) found - Order By Newest|
|Frequently asked to fresh graduates.|
|Ans. ACID stands for Atomicity, Consistency, Isolation, Durability is a set of properties of database transactions.|
Atomicity means all or nothing. i.e parts of a transaction shouldn't commit if any one of them fails. Either the whole transaction should succeed or it should be complete rollback.
Consistency means that any transaction should lead database from one stabe state to another.
Isolation means that the execution of transaction results in a system state that would be obtained if transactions were executed serially.
Durability means that when a transaction is committed it forms the permanent state of database.
|Help us improve. Please let us know the company, where you were asked this question :|
|Like Discuss Correct / Improve  database  acid Asked in 7 Companies Intermediate|
Try 1 Question(s) Test
|What is database deadlock ? How can we avoid them?|
|What things you would care about to improve the performance of Application if its identified that its DB communication that needs to be improved ?|
|If you are given a choice to implement the code to either Insert a Record or Update if already exist, Which approach will you follow ?|
|What is the use of @GeneratedValue annotation in Hibernate?|
|What is a Database Trigger ?|
|What happens to backups if we delete the RDS instance ?|
|What is a Cursor ?|
|What are temp tables ?|
|Does SQL allow null values ? Can we use it within Where clause ?|