Microsoft SQL Server to PostgreSQL integration

Replicate your Microsoft SQL Server data into PostgreSQL with Weld.

Get started free Microsoft SQL Server connector

Microsoft SQL Server

Data source

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CONNECTOR SOURCE

Microsoft SQL Server to PostgreSQL

Replicate your Microsoft SQL Server data into PostgreSQL with Weld. Automatically replicate Tables, Views, and Schemas from your database to your database, keeping your analytics layer up to date and ready for querying.

Everything you need to get started

Microsoft SQL Server

Setup guide Connector page

PostgreSQL

Setup guide Connector page

Weld Connect API

Set up programmatically

Use the Weld Connect REST API to create Microsoft SQL Server connections, configure ELT syncs, and manage pipelines entirely through code. Built for embedding, automation, and CI/CD workflows.

Explore Weld Connect API reference

POST/elt_syncs

# Create a Microsoft SQL Server ELT sync
curl -X POST https://connect.weld.app/elt_syncs \
  -H "x-api-key: $API_KEY" \
  -d '{
    "connection_id": "conn_abc123",
    "integration_id": "mssql",
    "destination_schema_name": "mssql_data",
    "sync_interval": "0 * * * *"
  }'
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FAQs

How do I replicate Microsoft SQL Server data to PostgreSQL?

Sign up for Weld, connect Microsoft SQL Server as a source and PostgreSQL as a destination. Weld handles the extraction, loading, and lets you transform data using SQL or dbt.

What Microsoft SQL Server data can I replicate to PostgreSQL?

You can replicate Tables, Views, and Schemas. The available objects depend on your Microsoft SQL Server account permissions and configuration.

How often does Weld replicate data from Microsoft SQL Server?

Sync frequency depends on your Weld plan. Schedules range from every 5 minutes to daily intervals. Each sync processes only new and changed data.

Can I transform Microsoft SQL Server data before it lands in PostgreSQL?

Yes. Weld supports SQL-based transformations in the platform and integrates with dbt Cloud. You can clean, join, and model your data before analysis.

Is the Microsoft SQL Server to PostgreSQL integration secure?

Yes. Weld encrypts all data in transit and at rest, is SOC 2 Type II certified, and supports IP whitelisting. Credentials are stored encrypted and never logged.