Oracle interview experience Real time questions & tips from candidates to crack your interview

Associate Consultant

Oracle
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3 rounds | 5 Coding problems

Interview preparation journey

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Preparation
Duration: 2 Months
Topics: C, C++, OOPS in C++, SQL, HTML, CSS, Java Script
Tip
Tip

Tip 1 : Have a strong grip over the basics concepts of OOPS like classes, objects, encapsulation, polymorphism, data abstraction, and Inheritance.
Tip 2 : You should know how the SQL queries work and have a command on their database called Oracle.
Tip 3 : Learn javascript as its their most important requirement and it will give a strong edge over others. So C++,OOPS,SQL and Javascript are most important requirements and other things you should be aware of are Basics of DSA, Web development.

Application process
Where: Campus
Eligibility: Above 7 CGPA
Resume Tip
Resume tip

Tip 1 : You should have at least one project on your resume, mine was a web development group project and I did front-end work and the interviewer discussed it for at least 10 minutes.
Tip 2 : Have something on your resume that shows you are a team player and can work really efficiently working with the team like I lead a team of 5 during Smart India Hackathon and it gave me a huge edge over others.

Interview rounds

01
Round
Hard
Online Coding Interview
Duration150 minutes
Interview date1 Sep 2021
Coding problem2

Oracle’s aptitude test is one of the longest aptitude tests I appeared for in my placement phase. It was around 2hrs 30mins long.
Questions were from basically every subject I had studied like OS, CN, SDLC, etc. Questions weren’t too hard but the difficult part about this test is that it was divided into sections and sub-sections.
Each sub-section had its own independent time interval so bringing it down to like 10 quant questions in 14 minutes might sound easy but it’s not. So managing time is the only difficult part of this round.

1. SQL Question

Which is the correct SQL query to select the top 5 numbers from the given data?

2. Insertion in AVL Tree

Moderate
20m average time
80% success
0/80
Asked in companies
AmazonMorgan StanleySamsung

Ninja has to implement an ‘AVL_TREE’ from scratch.

He is given ‘N’ values, representing the values of nodes to be inserted. Ninja has to insert these values into the ‘AVL_TREE’ and return its root after inserting all the nodes.

Note: An ‘AVL_TREE’ is a self-balancing Binary Search Tree (BST) where the difference between heights of left and right subtrees cannot be more than one for all nodes.

For example:

Try solving now
02
Round
Easy
Video Call
Duration30 minutes
Interview date3 Sep 2021
Coding problem2

The Technical Interview started off very fine and lasted for about 30-40 minutes. There were few HR questions in the beginning. The interviewer is very friendly. Firstly they asked me to tell them about myself. then the reasons for choosing this Profile. Then he asked me to explain the projects I have done. I have explained them. They have interrupted me and asked some doubts meanwhile. But I felt that they were intended just to check my confidence and how would I explain their doubts. They asked me some DSA Questions but I told them I am not much confident in DSA then they asked Basic Questions on DBMS like Explain about Normalization of DB, self Join, etc. And at the end, he asked me a general aptitude question based on Distance and time.

Overall the Interview was quite easy. Just learn the basics. Maintain good communication skills. Be confident and add good projects to your CV. Then it will be very easy to crack this round.

1. SQL Question

Asked me to write a query to select some data from large collection of it.

2. Third greatest element

Easy
20m average time
80% success
0/40
Asked in companies
OlaAdobeFreshworks

Given an array/list 'ARR' of ‘N’ distinct integers, you are supposed to find the third largest element in the given array 'ARR'.

Try solving now
03
Round
Easy
HR Round
Duration30 minutes
Interview date3 Sep 2021
Coding problem1

In the first 10 min, He asked me general HR questions like why OFSS. What are your strengths etc?
Then he asked me a puzzle. Then he asked me some questions from my resume regarding my internship and extracuriculars.
Then he asked me questions related to banking like how banks earn money, is a loan asset or liability, is FD asset or liability for a bank, and as I knew all these financial concepts already so it was quite easy for me to crack this round. The interviewer was very friendly and then I asked him some questions regarding the job profile and he answered every question happily and it was visible on his face that he is happy with my interview.

1. Puzzle

Suppose there are N balls. out of which only 1 ball is lighter in weight. You are given a simple balance. Then How many minimum no. of attempts do one take to find out that lighter ball. and how many maximum numbers of attempts does one takes to find out the lighter ball. He also added that in order to find a maximum number of attempts there is a certain condition and he asked me to find that.
The condition is we need to use Worst case scenario that is the lightweight ball comes at last.

Problem approach

Tip 1 : Practise some puzzles.
Tip 2 : Be prepared for questions like why OFSS, Why this profile, Your strengths, your future plans etc.
Tip 3 : Try to be calm during every situation in an interview as it shows your confidence and it matters to company how you handle such situations.

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

Which SQL clause is used to specify the conditions in a query?

Choose another skill to practice
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