> ## Documentation Index
> Fetch the complete documentation index at: https://help.dingtalk.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Large-Volume Data Import

> For large-volume Excel import scenarios, the import capacity of Dedicated Storage increases from 10,000 to 50,000 rows. In a VPC cloud PostgreSQL environment, 50,000 rows import in 5-10 minutes. The Dedicated edition accelerates imports through optimized connection technology. This article also covers import limits and considerations for non-Dedicated editions.

* In a VPC cloud PostgreSQL environment, 50,000 rows with 100 basic fields import within 5-10 minutes.
* The Dedicated edition optimizes the underlying connection technology and delivers faster import speeds through Dedicated Storage database connection technology.

## Dedicated Edition Import

For large-volume data imports on regular forms, the single-import limit rises to 50,000 rows.

For large-volume imports on workflow forms, the limit rises to 10,000 rows.

Integration & automation and business rules (for data retrieval, update, and deletion) support up to 2,000 records.

<Note>
  * Within the Update node, the higher limit applies only to the "Update by node" method. The "Direct update" method remains capped at 100 records.

  * If you use a Data Retrieval node to fetch 2,000 records and insert them into a subform through an Insert node, the subform's 500-record limit still applies, so only 500 records are written.
</Note>

## Non-Dedicated Edition Import (Comparison)

* For large-volume data imports on regular forms, the single-import limit is 5,000 rows, and import speed is relatively slow.

## **Notes**

If Dedicated Storage is enabled for the app, integration & automation can retrieve only 100 subform records at a time.