Oracle interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Oracle
3 rounds | 4 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 1 month
Topics: Data Structures, OOPS, Multithreading, Puzzle Solving, DBMS, Operating System
Tip 1 : Practice Competitive Coding questions(atleast 2 questions daily)
Tip 2 : Work on atleast 2 projects
Tip 3 : Prepare for HR question in advance
Application process
Where: Referral
Eligibility: No Criteria
Tip 1: One page resume would be prefer with the details you can handle
Tip 2: Atleast 1 project should be there
Interview rounds
01
Round
Medium
Online Coding Interview
Duration60 Minutes
Interview date12 Aug 2021
Coding problem2
Tiiming: According to your convenience.
Environment/platform was user friendly.
They gave you 2 retry to write your answers.
No interviewer in this round
1. Second largest element in the array
Easy
15m average time
80% success
0/40
Asked in companies
You have been given an array/list 'ARR' of integers. Your task is to find the second largest element present in the 'ARR'.
Note:
a) Duplicate elements may be present.
b) If no such element is present return -1.
Example:
Input: Given a sequence of five numbers 2, 4, 5, 6, 8.
Output: 6
Explanation:
In the given sequence of numbers, number 8 is the largest element, followed by number 6 which is the second-largest element. Hence we return number 6 which is the second-largest element in the sequence.
Problem approach
1) Take 2 variables a & b , then initialize a with first element of array, which is arr[0].
2) then traverse array with arr[1], then check conditions:
i) If the current element in array say arr[i] is greater than a. Then update a and b as,
b = a
a = arr[i]
ii) If the current element is in between a and b, then update b to store the value of current variable as
b = arr[i]
3) Return the value stored in variable b.
2. Check Permutation
Easy
0/40
Asked in companies
For a given two strings, 'str1' and 'str2', check whether they are a permutation of each other or not.
Permutations of each other
Two strings are said to be a permutation of each other when either of the string's characters can be rearranged so that it becomes identical to the other one.
Example:
str1= "sinrtg"
str2 = "string"
The character of the first string(str1) can be rearranged to form str2 and hence we can say that the given strings are a permutation of each other.
Problem approach
1) Create a hashmap and store count of characters of string a in it.
2) Now loop over string b and check if current character already exist or not.
3) If Yes reduce the count.
4) At the end check if all the keys are 0, then its a anagram.
02
Round
Medium
Video Call
Duration40 Minutes
Interview date17 Aug 2021
Coding problem1
It was in afternoon
Environment was friendly and comfortable
Interviewer was very friendly.
1. OOPS Questions
What are OOPS concept?
What is multithreading?
What Garbage Collector do?
Problem approach
Tip 1: Keep it short and simple. Don't stretch the answer.
Tip 2: Read basics of each language.
03
Round
Easy
HR Round
Duration30 minutes
Interview date20 Aug 2022
Coding problem1
Its a versant round, to check you english.( Your communication and hearing skills)
1. Basic HR Question
Why should we hire you?
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
Choose another skill to practice
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