Databricks Certified Data Engineer - Associate

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Answer: MERGE

The MERGE command in Databricks is used to merge a source DataFrame into a target Delta table. It allows you to insert new records and update or delete existing ones based on a condition. This helps in avoiding the writing of duplicate records by ensuring that only new or modified records are inserted or updated, respectively.

Author: LeetQuiz Editorial Team

Quick Answer

Answer-first summary for fast verification

Answer: MERGE

Author: LeetQuiz Editorial Team

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In the Databricks environment, when working with Delta tables to ensure data consistency, which specific command allows you to write data into a Delta table while preventing the inclusion of duplicate records?

Exam-Like

DROP

0.7%

INSERT

5.1%

MERGE

88.3%

APPEND

5.8%