Interview Questions
Interview Guides
Experiences
Explore
Get started
Sign in
Interview Guides
All questions
/
SQL & Data Manipulation
Fixing LEFT JOIN Duplicates
Medium
Asked at 1 company
Subqueries
Joins
Data Wrangling
Problem
How would you handle a situation where a LEFT JOIN results in an unexpected duplication of rows?
Question
Answer
Problem
How would you handle a situation where a LEFT JOIN results in an unexpected duplication of rows?
Your answer
Edit
Preview
Try one AI text evaluation on us
Get structured feedback, scored against a 4-axis rubric. Premium unlocks unlimited.
0 words
target ~200
Try a free preview
Stuck? Get a hint
Past attempts
Up next
Left Join Duplicate Rows
Medium
Handle Duplicates in Joins
Easy
Troubleshoot Duplicate Rows After Joins
Hard
Next question
Fixing LEFT JOIN Duplicates | Dataford Interview Questions
