Which is faster copy command vs bulkinsert/polybase in copy activity (synapse)?

Das, Mahasweta 20 Reputation points
2025-10-15T09:34:19.5833333+00:00

Dear all,

Could you please help me explaining which is faster to use copy command vs bulk insert /poly base in copy activity while pushing data to sink?

Thanks,

Mahasweta

Azure Synapse Analytics
Azure Synapse Analytics
An Azure analytics service that brings together data integration, enterprise data warehousing, and big data analytics. Previously known as Azure SQL Data Warehouse.
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  1. Harry Vo (WICLOUD CORPORATION) 3,360 Reputation points Microsoft External Staff Moderator
    2025-10-15T10:12:58.49+00:00

    Hi Mahasweta,

    PolyBase and COPY Command are much faster than Bulk Insert.

    • Use PolyBase for large-scale, high-performance loads.
    • Use COPY Command for simpler setup with similar performance.
    • Avoid Bulk Insert for large datasets as it’s slower and less scalable.

    If you think my response is useful, please kindly react accordingly to our system as final answer. If you have any question, please let us know! Thank you!

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