Question
A DataFrame sent to `write_table` in merge mode contains updates for 200 customer IDs, while the feature table contains 10,000 customers. What happens to rows whose keys are not in the DataFrame?
Study Tools
AI Certs Reviewer
Main site
Databricks
Data / AI platforms
Current
AWS
Cloud AI / ML engineering
Microsoft
Cloud AI / ML engineering
GitHub
Cloud AI / ML engineering
Google Cloud
Cloud AI / ML engineering
Oracle
Cloud AI / ML engineering
Snowflake
Data / AI platforms
CompTIA
Data / AI platforms
NVIDIA
AI infrastructure / accelerated computing
Cisco
AI infrastructure / accelerated computing
Salesforce
Enterprise AI apps / agents
OpenAI
Enterprise AI apps / agents
ServiceNow
Enterprise AI apps / agents
CertNexus
AI security, governance, and responsible AI
IAPP
AI security, governance, and responsible AI
ISACA
AI security, governance, and responsible AI
EC-Council
AI security, governance, and responsible AI
ARTiBA
Independent AI credentialing bodies
USAII
Independent AI credentialing bodies
Flashcard practice
Practice multiple choice certification questions for Databricks Certified Machine Learning Associate and review the explanation after each answer.
A DataFrame sent to `write_table` in merge mode contains updates for 200 customer IDs, while the feature table contains 10,000 customers. What happens to rows whose keys are not in the DataFrame?
Read aloud starts automatically.
Guest checks show correctness and the answer key. Log in to save history and unlock evaluator notes.
i Review the explanation and try similar questions to strengthen your understanding.
Issue reporting
Clara
Search across lessons, syllabus topics, provider capabilities, and certification questions.