Oracle interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Oracle
3 rounds | 2 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 5 Months
Topics: Arrays, Linked List, Oops, System Design, Docker, Kubernetes
Tip 1 : Stay focused
Tip 2 : Practice coding questions
Tip 3 : View previous interviews of the company applying to
Application process
Where: Referral
Eligibility: 2+ years experience
Tip 1 : Have atleast 3 great project
Tip 2 : Write only what you know and prepare well
Interview rounds
01
Round
Easy
Coding Test - Pen and paper
Duration120 Minutes
Interview date7 Jan 2022
Coding problem0
The written test consisted of 4 parts. Each part had a few more sub-parts which are to be answered in 120 mins.
Grammatical, spoken English, and passage analysis.
Analytical, Mathematical reasoning.
Programming skills. (Data structures, C++, Java)
Technical knowledge. (Operating Systems, DBMS)
02
Round
Easy
Video Call
Duration90 Minutes
Interview date7 Jan 2022
Coding problem2
The interviewer first introduced himself and then asked me for an introduction. He asked some normal questions like how I am feeling, how was my day, how was written test was. He made me comfortable then asked 2 coding questions.
1. Square Root (Integral)
Easy
0/40
Asked in companies
Given a number N, find its square root. You need to find and print only the integral part of square root of N.
For eg. if number given is 18, answer is 4.
Problem approach
Initially, I have told him a brute-force approach of O(n). He asked for optimization. Then I have given a binary search approach. He agreed to that and asked me to write code for that. I had written the code in 5 mins then he asked me to dry run on some test cases.
2. Triplets with Given Sum
Moderate
15m average time
85% success
0/80
Asked in companies
You are given an array/list ARR consisting of N integers. Your task is to find all the distinct triplets present in the array which adds up to a given number K.
An array is said to have a triplet {ARR[i], ARR[j], ARR[k]} with sum = 'K' if there exists three indices i, j and k such that i!=j, j!=k and i!=j and ARR[i] + ARR[j] + ARR[k] = 'K'.
Note:
1. You can return the list of values in any order. For example, if a valid triplet is {1, 2, -3}, then {2, -3, 1}, {-3, 2, 1} etc is also valid triplet. Also, the ordering of different triplets can be random i.e if there are more than one valid triplets, you can return them in any order.
2. The elements in the array need not be distinct.
3. If no such triplet is present in the array, then return an empty list, and the output printed for such a test case will be "-1".
Problem approach
I have proposed two approaches one was sorting + two pointer-based and other one was map-based. He asked me to explain both the approaches and at the end he asked me to code sorting based approach. I had written the code in 10 mins and then dry run the code for the given test case.
03
Round
Easy
Video Call
Duration60 Minutes
Interview date7 Jan 2022
Coding problem0
There was only one member in the panel.
He first introduced himself. He was a senior manager and was working in oracle for around 10 years.
Then he asked me to introduce myself. He already had my resume with him.
He asked some questions based on my resume.
Then he asked me to explain one of my projects. I had explained to him that project.
He asked me which one is a team project. I told him about one of my projects which was a team project. He then asked me to explain that project and then some general questions like conflicts in the team, problems faced during projects.
After that, he explained a bit about Oracle and its current work.
Then he asked me if I had any questions.
Here's your problem of the day 
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Skill covered: Programming
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