Export very large dataset (million or row) in CSV as chunks

user094816
user094816 Member
in APIs & Domo Developer

Is it possible in DOMO using python or postman to export whole dataset but break files(CSV/Excel) so we can have 5 million rows in each exported file.

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Answers

  • GrantSmith
    GrantSmith Coach

    Hi @user094816

    I don't believe Domo's API supports pagination / chunking data. You could utilize the API to read the entire dataset and then use your python script to do the splitting logic yourself.

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  • user094816
    user094816 Member

    Hi @GrantSmith , Thank you for your feedback. Since domo is slow while exporting data from cards (applying filer of date range to reduce number of rows < 10 ML) for 2 reasons

    1) data is very huge

    2) Many filters applied on card

    I have solved 2nd option and added all filters on ETL itself to reduce the data and generated a new dataset.

    Now I am looking for export this huge dataset 104 M rows with 38.5 GB data size. What is the best approach?

    I tried to filter and export from UI in DOMO Dataset, but it's not exporting filtered rows from dataset.

  • jaeW_at_Onyx
    jaeW_at_Onyx Coach

    either use dataset views to construct filtered views of your dataset, or use the domo cli https://knowledge.domo.com/Administer/Other_Administrative_Tools/Command_Line_Interface_(CLI)_Tool#section_34, to query-data or export-data and create filtered exports.

    Jae Wilson
    Check out my 🎥 Domo Training YouTube Channel 👨‍💻

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