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01 Date and Time Manipulation

Exercise for date and time manipulation.

Transform date and time values from string to the dedicated Date&Time format. Remove redundant digits from the timestamps. Extract the day of the week from the dates, and aggregate the data.


Exercise: Date and Time ManipulationRead the New York City Airbnb data by executing the CSV Reader node.1) Convert the timestamps in the last_review column from string to Date&Time2) Remove rows with missing values in the last_review column3) Remove the time values from the timestamps4) Extract the day of the week from each timestamp5) Count the number of last reviews on each day of the week. Which day of the week has the highest count? Andthe lowest? Remove timeCount by weekdayRemove rows wherelast_review is missingRead AB_NYC_2019dataExtract weekday String to Date&Time Modify Time GroupBy Sorter Missing Value CSV Reader Extract Date&TimeFields Exercise: Date and Time ManipulationRead the New York City Airbnb data by executing the CSV Reader node.1) Convert the timestamps in the last_review column from string to Date&Time2) Remove rows with missing values in the last_review column3) Remove the time values from the timestamps4) Extract the day of the week from each timestamp5) Count the number of last reviews on each day of the week. Which day of the week has the highest count? Andthe lowest? Remove timeCount by weekdayRemove rows wherelast_review is missingRead AB_NYC_2019dataExtract weekday String to Date&Time Modify Time GroupBy Sorter Missing Value CSV Reader Extract Date&TimeFields

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To use this workflow in KNIME, download it from the below URL and open it in KNIME:

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Created by: Maarit Laukkanen
Created at: 2020-10-23
On NodePit since: 2023-03-11
Last update: 2024-11-18
Created with KNIME version: v4.7.0
Tags: datetimestring to date&timemodify timeextract date&time fields

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