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You noticed that colleague is manually copying the notebook with _bkp to store the previous versions, which of the following feature would you recommend instead.
You noticed that colleague is manually copying the notebook with _bkp to store the previous versions, which of the following feature would you recommend instead.A . Databricks notebooks support change tracking and versioning B. Databricks notebooks should be copied to a local machine and setup source control locally to version...
Which of the following method can be used to ingest the data incrementally?
You are currently working to ingest millions of files that get uploaded to the cloud object storage for consumption, and you are asked to build a process to ingest this data, the schema of the file is expected to change over time, and the ingestion process should be able to...
as total_sales from sales
as total_sales from salesView AnswerAnswer: C Explanation: The answer is
Which of the following SQL statements can be used to update a transactions table, to set a flag on the table from Y to N
Which of the following SQL statements can be used to update a transactions table, to set a flag on the table from Y to NA . MODIFY transactions SET active_flag = 'N' WHERE active_flag = 'Y' B. MERGE transactions SET active_flag = 'N' WHERE active_flag = 'Y' C. UPDATE transactions...
What could be the expected output of query SELECT COUNT (DISTINCT *) FROM user on this table
What could be the expected output of query SELECT COUNT (DISTINCT *) FROM user on this table A . 3 B. 2 (Correct) C. 1 D. 0 E. NULLView AnswerAnswer: B Explanation: The answer is 2, Count (DISTINCT *) removes rows with any column with a NULL value
table(table_name))
table(table_name))A . format, checkpointlocation, schemalocation, overwrite B. cloudfiles.format, checkpointlocation, cloudfiles.schemalocation, overwrite C. cloudfiles.format, cloudfiles.schemalocation, checkpointlocation, mergeSchema D. cloudfiles.format, cloudfiles.schemalocation, checkpointlocation, overwrite E. cloudfiles.format, cloudfiles.schemalocation, checkpointlocation, appendView AnswerAnswer: C Explanation: The answer is cloudfiles.format, cloudfiles.schemalocation, checkpointlocation, mergeSchema. Here is the end to end syntax of streaming ELT, below link contains complete...
Which of the following approaches can enable the data engineering team to be notified if the ELT job has not been run in an hour?
A data engineer is using a Databricks SQL query to monitor the performance of an ELT job. The ELT job is triggered by a specific number of input records being ready to process. The Databricks SQL query returns the number of minutes since the job’s most recent runtime. Which of...
Which of the following SQL command can be used to insert or update or delete rows based on a condition to check if a row(s) exists?
Which of the following SQL command can be used to insert or update or delete rows based on a condition to check if a row(s) exists?A . MERGE INTO table_name B. COPY INTO table_name C. UPDATE table_name D. INSERT INTO OVERWRITE table_name E. INSERT IF EXISTS table_nameView AnswerAnswer: A Explanation:...
Which of the following SQL command can be used to insert or update or delete rows based on a condition to check if a row(s) exists?
Which of the following SQL command can be used to insert or update or delete rows based on a condition to check if a row(s) exists?A . MERGE INTO table_name B. COPY INTO table_name C. UPDATE table_name D. INSERT INTO OVERWRITE table_name E. INSERT IF EXISTS table_nameView AnswerAnswer: A Explanation:...
You are currently asked to work on building a data pipeline, you have noticed that you are currently working on a very large scale ETL many data dependencies, which of the following tools can be used to address this problem?
You are currently asked to work on building a data pipeline, you have noticed that you are currently working on a very large scale ETL many data dependencies, which of the following tools can be used to address this problem?A . AUTO LOADER B. JOBS and TASKS C. SQL Endpoints...
