关于“使用 Dataflow 为实时信息中心创建流式数据流水线”的评价

Diagrams of areas and selections items would be very helpful and expected from a professional organization.

Don M. · 已于 over 3 years前审核

Md Irfan A. · 已于 over 3 years前审核

I could not follow all the instructions, maybe my fault.

Serhan K. · 已于 over 3 years前审核

very good

Abhijit G. · 已于 over 3 years前审核

a good lab to get hands on experience

Mike D. · 已于 over 3 years前审核

MOIDUDDIN A. · 已于 over 3 years前审核

Mike D. · 已于 over 3 years前审核

Manuel Jose C. · 已于 over 3 years前审核

Streamline pipeline job not streaming data, Tried twice

Vishal K. · 已于 over 3 years前审核

short time

Dalia H. · 已于 over 3 years前审核

outdated, UI and process have changed significantly, unable to complete all parts of lab

Jeffrey K. · 已于 over 3 years前审核

Achraf I. · 已于 over 3 years前审核

Jordi L. · 已于 over 3 years前审核

Lack of screenshots

MARTIAL K. · 已于 over 3 years前审核

Nicolas B. · 已于 over 3 years前审核

Pierre-Arnaud B. · 已于 over 3 years前审核

Oleh V. · 已于 over 3 years前审核

Jay P. · 已于 over 3 years前审核

Zuhaib Muhammad -. · 已于 over 3 years前审核

V G. · 已于 over 3 years前审核

Gaurav J. · 已于 over 3 years前审核

I suspect there is an error in this query: WITH streaming_data AS ( SELECT timestamp, TIMESTAMP_TRUNC(timestamp, HOUR, 'UTC') AS hour, TIMESTAMP_TRUNC(timestamp, MINUTE, 'UTC') AS minute, TIMESTAMP_TRUNC(timestamp, SECOND, 'UTC') AS second, ride_id, latitude, longitude, meter_reading, ride_status, passenger_count FROM taxirides.realtime ORDER BY timestamp DESC LIMIT 1000 ) # calculate aggregations on stream for reporting: SELECT ROW_NUMBER() OVER() AS dashboard_sort, minute, COUNT(DISTINCT ride_id) AS total_rides, SUM(meter_reading) AS total_revenue, SUM(passenger_count) AS total_passengers FROM streaming_data GROUP BY minute, timestamp The text says that the result shows key metrics by the minute for every taxi drop-off. However, by grouping per timestamp and minute, you are doing a data-summary by row and not by minute. Finally, 2 minutes were not enough to collect drop-off data to create the final plot, at least in my case. Cheers, Giacomo

Giacomo B. · 已于 over 3 years前审核

Shruti K. · 已于 over 3 years前审核

anuj g. · 已于 over 3 years前审核

Alodeepa R. · 已于 over 3 years前审核