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SQL and LeetCode Coding Basics
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SQL and LeetCode Coding Basics

EasySQL · PostgreSQL

Problem

I remember three easy programming questions (similar to leetcode).

Using the provided question bank, write a SQL query that returns three questions classified as easy programming questions.

Output

  1. Return exactly three rows, when at least three matches exist.
  2. Include question_id, title, and topic.
  3. Sort by question_id in ascending order before selecting the three rows.

Schema

programming_questions
ColumnTypeDescription
question_idPKINTUnique identifier for the question
titleVARCHAR(150)Question title
difficultyVARCHAR(20)Question difficulty classification
question_typeVARCHAR(30)Type of question
topicVARCHAR(50)Primary topic associated with the question
Tablesprogramming_questions
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Your question is SQL and LeetCode Coding Basics. Start with the requirements and the one table in the Question tab.

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CodePostgreSQL
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