SQL NULL Handling Query based Technical interview questions and answers

SQL NULL Handling Query based Technical interview questions and answers
Join this channel to get access to perks:
youtube.com/channel/UCVw1BOXs3-hYRhXEYEfTO-w/join

SQL NULL Handling Query Interview Questions and Answers focus on how NULL values behave in SQL operations. Common topics include using IS NULL vs = NULL, handling NULLs in JOIN, GROUP BY, and ORDER BY, and functions like ISNULL(), COALESCE(), and NULLIF(). Candidates are tested on how NULL affects comparison, aggregation, and logic flow. These questions evaluate understanding of SQL's three-valued logic and the correct techniques to manage NULLs in data retrieval and transformation.