Last Updated: 21 Feb, 2026
Oracle Interview Questions
Ace the Oracle coding interview by solving the Oracle interview questions exclusively on CodeStudio with a range of practice problems.
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Categories
Problem Title
Exp
Difficulty
Avg. time
Attempted
Upvotes
40
Easy
23 mins
5.8k
36
120
Hard
25 mins
15.9k
141
80
Moderate
38 mins
5.8k
47
40
Easy
20 mins
26.1k
188
80
Moderate
10 mins
11.5k
255
40
Easy
12 mins
12.4k
60
80
Moderate
15 mins
11.6k
74
80
Moderate
10 mins
2.2k
15
40
Easy
10 mins
5.4k
44
80
Moderate
-
69.2k
240
80
Moderate
15 mins
3.1k
94
80
Moderate
15 mins
55.6k
187
80
Moderate
35 mins
2.7k
33
120
Hard
10 mins
1.5k
20
40
Easy
10 mins
8.5k
43
80
Moderate
15 mins
41.6k
122
80
Moderate
25 mins
1.3k
10
80
Moderate
35 mins
2.1k
12
40
Easy
15 mins
2.1k
23
80
Moderate
15 mins
7.5k
32
120
Hard
45 mins
1k
7
80
Moderate
30 mins
0.4k
5
40
Easy
20 mins
0.1k
2
40
Easy
15 mins
0.2k
1
40
Easy
15 mins
23.9k
79
1
2
Frequently Asked Questions
How do I prepare for a Oracle Coding Interview?
Oracle has an interview process that is easy to medium in difficulty. To prepare: Go through your CS fundamentals. Revise your notes on operating systems, database management systems, computer networks, system design, and data structure and algorithms. Practice questions on top interview preparation sites to gain confidence in solving questions and go through previously asked interview questions.
How many rounds are there in a Oracle interview?
Oracle has three interview rounds. First, you need to crack the online coding round to get to the interview rounds. The interview rounds consist of 2 technical interviews and an HR interview round. To crack the technical interview, ensure a strong hand in arrays, strings, trees, and implementation problems.
How to answer Oracle Interview Questions?
First, read and understand the question to answer the Oracle interview questions. Then discuss your approach with the interviewer. If the interviewer is satisfied, start coding the solution. Keep communicating with the interviewer about what you are coding and discuss alternative approaches to your solution. Try to optimize your solution as much as possible in terms of space and time complexity.
How hard are Oracle coding interviews?
Oracle interviews are easy to medium in difficulty. They mostly ask questions about trees, arrays, strings, and sometimes on graphs. They may ask conceptual questions on operating systems, database management systems, and system design, but they are not very difficult. In the HR round, you will be asked mostly typical HR questions, which are not very difficult to answer.