Databricks vs Oracle Interview Questions
Databricks lists 31 LeetCode interview questions while Oracle lists 314. They share 11 problems — 35% of Databricks's bank and 4% of Oracle's. Focus on the overlap first, then drill into 20 Databricks-only and 303 Oracle-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 11 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Databricks and Oracle.
Step 2 — Company-specific depth: Add Databricks-specific problems like IP to CIDR, Design Tic-Tac-Toe, Find All Anagrams in a String and Oracle-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Databricks skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
11 Shared Questions
High-priority problems to practice for both Databricks and Oracle.
| Problem | Difficulty |
|---|---|
| Design Hit Counter | Medium |
| House Robber | Medium |
| Time Based Key-Value Store | Medium |
| Text Justification | Hard |
| Permutation in String | Medium |
| Longest Mountain in Array | Medium |
| Spiral Matrix | Medium |
| Minimum Knight Moves | Medium |
| Merge Intervals | Medium |
| Rotting Oranges | Medium |
| Two Sum | Easy |
Unique to Databricks (20)
Problems in Databricks's list that do not appear at Oracle.
Unique to Oracle (303)
Problems in Oracle's list that do not appear at Databricks.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Number of Islands | Medium |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Sliding Window Maximum | Hard |
| Valid Parentheses | Easy |
| Merge k Sorted Lists | Hard |
| Meeting Rooms II | Medium |
| Longest Palindromic Substring | Medium |
| Minimum One Bit Operations to Make Integers Zero | Hard |
| LFU Cache | Hard |
Frequently Asked Questions
How many LeetCode questions do Databricks and Oracle share?
Databricks and Oracle share 11 LeetCode interview questions. 20 problems appear only in Databricks's list and 303 appear only in Oracle's list.
What topics overlap most between Databricks and Oracle?
The most common shared topics between Databricks and Oracle are Array (8 shared questions), Hash Table (3 shared questions), String (3 shared questions), Binary Search (2 shared questions), Design (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Databricks or Oracle?
Databricks has 2 Easy, 22 Medium, and 7 Hard questions. Oracle has 61 Easy, 194 Medium, and 59 Hard questions. Databricks has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Databricks and Oracle?
Start with the 11 shared problems since they cover what both companies ask most often. Then add 20 Databricks-specific and 20 Oracle-specific questions to round out your prep.