> For the complete documentation index, see [llms.txt](https://v2.dataos.info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v2.dataos.info/concepts/resources/nilus/batch/batch-sources.md).

# Batch Sources

Batch sources read data on a scheduled or manually triggered cadence. Use them for full refreshes, incremental snapshots, and bounded query-based extraction.

For batch manifest shape, see [Understanding Batch Pipeline Config](/concepts/resources/nilus/batch/pipeline-config.md). For worked examples, see [Batch Sample Configs](/concepts/resources/nilus/batch/sample-configs.md).

## Published Batch Sources

| Source                                                                                  | Category | Notes                                                                                     |
| --------------------------------------------------------------------------------------- | -------- | ----------------------------------------------------------------------------------------- |
| [AWS Redshift](/concepts/resources/nilus/batch/batch-sources/aws-redshift.md)           | Database | Warehouse reads through the Redshift/PostgreSQL-compatible path.                          |
| [Azure Synapse](/concepts/resources/nilus/batch/batch-sources/azure-synapse.md)         | Database | Supported through the MS SQL Server batch source against a compatible dedicated SQL pool. |
| [ClickHouse](/concepts/resources/nilus/batch/batch-sources/clickhouse.md)               | Database | Batch reads from ClickHouse tables or queries.                                            |
| [Databricks](/concepts/resources/nilus/batch/batch-sources/databricks.md)               | Database | Batch reads through Databricks SQL warehouses.                                            |
| [Delta Lake](/concepts/resources/nilus/batch/batch-sources/delta-lake.md)               | Database | Batch reads from Delta table storage.                                                     |
| [Google Analytics](/concepts/resources/nilus/batch/batch-sources/google-analytics.md)   | SaaS API | Batch API extraction from Google Analytics.                                               |
| [Google BigQuery](/concepts/resources/nilus/batch/batch-sources/google-bigquery.md)     | Database | Batch reads from BigQuery datasets and tables.                                            |
| [Google Sheets](/concepts/resources/nilus/batch/batch-sources/google-sheets.md)         | SaaS API | Batch extraction from spreadsheets.                                                       |
| [HubSpot](/concepts/resources/nilus/batch/batch-sources/hubspot.md)                     | SaaS API | Batch API extraction from HubSpot resources.                                              |
| [MongoDB (Batch)](/concepts/resources/nilus/batch/batch-sources/mongodb.md)             | Database | Batch extraction from collections or aggregation output.                                  |
| [MS SQL Server (Batch)](/concepts/resources/nilus/batch/batch-sources/ms-sql-server.md) | Database | Batch reads from SQL Server tables and views.                                             |
| [MySQL (Batch)](/concepts/resources/nilus/batch/batch-sources/mysql.md)                 | Database | Batch reads from MySQL tables and views.                                                  |
| [PostgreSQL (Batch)](/concepts/resources/nilus/batch/batch-sources/postgresql.md)       | Database | Batch reads from PostgreSQL tables and views.                                             |
| [Salesforce](/concepts/resources/nilus/batch/batch-sources/salesforce.md)               | SaaS API | Batch API extraction from Salesforce objects.                                             |
| [Snowflake](/concepts/resources/nilus/batch/batch-sources/snowflake.md)                 | Database | Batch reads from Snowflake tables, views, or queries.                                     |
| [Stripe](/concepts/resources/nilus/batch/batch-sources/stripe.md)                       | SaaS API | Batch API extraction from Stripe resources.                                               |


---

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