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...

March 9, 2023 No Comments READ MORE +

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...

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When using the complete mode to write stream data, how does it impact the target table?

When using the complete mode to write stream data, how does it impact the target table?A . Entire stream waits for complete data to write B. Stream must complete to write the data C. Target table cannot be updated while stream is pending D. Target table is overwritten for each...

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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...

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What would you recommend for reducing the overall cost of this approach?

You noticed that a team member started using an all-purpose cluster to develop a notebook and used the same all-purpose cluster to set up a job that can run every 30 mins so they can update un-derlying tables which are used in a dashboard. What would you recommend for reducing...

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You are noticing job cluster is taking 6 to 8 mins to start which is delaying your job to finish on time, what steps you can take to reduce the amount of time cluster startup time

You are noticing job cluster is taking 6 to 8 mins to start which is delaying your job to finish on time, what steps you can take to reduce the amount of time cluster startup timeA . Setup a second job ahead of first job to start the cluster, so...

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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...

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Which of the following technique can be used to implement fine-grained access control to rows and columns of the Delta table based on the user's access?

Which of the following technique can be used to implement fine-grained access control to rows and columns of the Delta table based on the user's access?A . Use Unity catalog to grant access to rows and columns B. Row and column access control lists C. Use dynamic view functions D....

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