DesignGurus – Grokking Oracle Coding Interview 2025-10

Description

Grokking Oracle Coding Interview Course. This specialized training course helps candidates prepare for the competitive hiring process at Oracle by reviewing 50 frequently asked questions in technical interviews. The training program is designed with a practical approach and learners can practice all questions in an interactive, browser-based coding environment, without the need to install any special software. By focusing on key areas assessed in Oracle interviews, this course strengthens problem-solving skills, coding efficiency and a deep understanding of concepts such as algorithms, data structures and coding patterns. The training content is organized in a way that is useful for beginners who want to start from scratch, as well as experienced developers who are looking to review and update their skills. Each of the 50 selected questions in this series reflects real challenges in Oracle technical interviews and prepares candidates to answer with accuracy and high confidence in interactive environments.

What you will learn

• Complete mastery of 50 frequently asked and key questions in Oracle coding interviews.
• Develop problem-solving skills using optimal patterns and coding standards.
• Improve efficiency and speed in writing clean code in pressured interview environments.
• Deep and practical understanding of data structures and advanced algorithms required for large enterprises.
• Familiarity with specific challenges and criteria for evaluating code written at Oracle.
• Ability to work with interactive in-browser coding environments to quickly test solutions.
• Learn how to analyze the temporal and spatial complexity for each of the problems presented.
• Get the preparation you need to shine in interviews with other big tech companies like FAANG.

This course is suitable for people who:

• Students and graduates who intend to enter the job market in international technology companies.
• Software engineers looking to advance their careers and get hired at Oracle.
• Developers who want to hone their skills to participate in FAANG interviews.
• Beginner programmers looking for a structured roadmap to learn algorithms and problem-solving techniques.
• Experienced professionals who need a quick and accurate review of advanced coding topics and standard questions.

Grokking Oracle Coding Interview Course Specifications

• Publisher: DesignGurus
• Instructor: DesignGurus
• Training level: Beginner
• Training duration: 25 hours
• Number of lessons: 101

Course headings

• Who Should Take This Course?
• Count Number of Pairs With Absolute Difference K (easy)
• Solution Count Number of Pairs With Absolute Difference K
• Degree of an Array (easy)
• Solution Degree of an Array
• Find Subsequence of Length K With the Largest Sum (easy)
• Solution Find Subsequence of Length K With the Largest Sum
• Rectangle Overlap (easy)
• Rectangle Overlap Solution
• Remove All Adjacent Duplicates In String (easy)
• Solution Remove All Adjacent Duplicates In String
• Island Perimeter (easy)
• Solution Island Perimeter
• Climbing Stairs (easy)
• Climbing Stairs Solution
• Move Zeroes (easy)
• Solution Move Zeros
• Excel Sheet Column Title (easy)
• Solution Excel Sheet Column Title
• Valid Parentheses (Easy)
• Solution Valid Parentheses
• Longest Palindromic Substring (medium)
• Longest Palindromic Substring Solution
• Single Element in a Sorted Array (medium)
• Solution Single Element in a Sorted Array
• Pairs of Songs With Total Durations Divisible by 60 (medium)
• Solution Pairs of Songs With Total Durations Divisible by 60
• Search a 2D Matrix II (medium)
• Solution Search a 2D Matrix II
• Minimize Maximum of Array (medium)
• Solution Minimize Maximum of Array
• Asteroid Collision (medium)
• Asteroid Collision Solution
• Combination Sum (medium)
• Solution Combination Sum
• Binary Tree Right Side View (medium)
• Solution Binary Tree Right Side View
• Sort Colors (medium)
• Solution Sort Colors
• Group Anagrams (Medium)
• Solution Group Anagrams
• Decode String (Medium)
• Solution Decode String
• Number of Islands (medium)
• Solution Number of Islands
• Binary Tree Zigzag Level Order Traversal (medium)
• Solution Binary Tree Zigzag Level Order Traversal
• Longest Common Subsequence (medium)
• Solution Longest Common Subsequence
• Rotting Oranges (medium)
• Rotting Oranges Solution
• Meeting Rooms II (medium)
• Solution Meeting Rooms II
• Delete Node in a BST (medium)
• Solution Delete Node in a BST
• Remove Duplicate Letters (medium)
• Solution Remove Duplicate Letters
• Longest Substring Without Repeating Characters (medium)
• Solution Longest Substring Without Repeating Characters (medium)
• Search in Rotated Array (medium)
• Solution Search in Rotated Array
• Spiral Matrix (medium)
• Spiral Matrix Solution
• Container With Most Water (Medium)
• Solution Container With Most Water
• 3Sum (medium)
• Solution 3Sum
• Simplify Path (medium)
• Solution Simplify Path
• Next Permutation (medium)
• Solution Next Permutation
• Basic Calculator II (medium)
• Basic Calculator II Solution
• Merge Intervals (medium)
• Solution Merge Intervals
• Restore IP Addresses (medium)
• Solution Restore IP Addresses
• Longest Increasing Subsequence (medium)
• Solution Longest Increasing Subsequence
• Validate Binary Search Tree (medium)
• Solution Validate Binary Search Tree
• Integer to English Words (hard)
• Solution Integer to English Words
• Rainwater harvesting (hard)
• Rainwater Trapping Solution
• First Missing Positive (hard)
• Solution First Missing Positive
• Merge K Sorted Lists (hard)
• Solution Merge K Sorted Lists
• Max Points on a Line (hard)
• Solution Max Points on a Line
• Sudoku Solver (hard)
• Sudoku Solver Solution
• Longest Valid Parentheses (hard)
• Solution Longest Valid Parentheses
• Remove Nth Node From End of List (Medium)
• Solution Remove Nth Node From End of List
• Median of Two Sorted Arrays (hard)
• Solution Median of Two Sorted Arrays
• Constrained Subsequence Sum (hard)
• Solution Constrained Subsequence Sum

Course images