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Azure SQL Database to PostgreSQL integration

Replicate your Azure SQL Database data into PostgreSQL with Weld. Automatically replicate the tables you choose from Azure SQL Database into PostgreSQL, keeping your analytics layer up to date and ready for querying.

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4.8 on G2
Azure SQL DatabaseSource
WeldWeld
PostgreSQLWarehouse
Weld · New sync
Azure SQL DatabaseSourceAzure SQL DatabaseConnected
Tables to sync

Your own tables, picked when you set up the sync.

  • Extract
  • Load
  • Keep in sync
PostgreSQLDestinationPostgreSQLReady
azure_sql_database schema
  • azure_sql_database.Synced
  • azure_sql_database.Syncing
  • azure_sql_database.Synced
  • azure_sql_database.Synced

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How it works

How to set up Azure SQL Database to PostgreSQL in Weld.
In the app, with the API or an agent.

Setup guideAPI guideMCP docs
Weld · New Azure SQL Database sync
Azure SQL DatabaseNew connectionAzure SQL DatabaseAuthorised
Connection nameazure_sql_database
AuthorizeOpens Azure SQL Database to grant read access
Use cases

Why replicate Azure SQL Database to PostgreSQL?
Ready for analysis.

Centralizing your Azure SQL Database data in PostgreSQL lets you join it with other data sources for cross-platform analytics and deeper insights.

Build reliable dashboards and reports by querying Azure SQL Database data directly in PostgreSQL using SQL or your preferred BI tool.

Consolidate data from Azure SQL Database alongside other databases and applications in a single database for a unified analytical layer.

  • Database replication for analytics

    Replicate your Azure SQL Database production data to PostgreSQL without impacting database performance. Query historical data without load on your primary database.

  • Centralized data warehouse

    Bring Azure SQL Database data into PostgreSQL alongside other sources to create a single source of truth for your organization.

  • Automated reporting

    Replace manual exports and spreadsheet-based reporting with automated pipelines from Azure SQL Database to PostgreSQL. Connect BI tools like Looker, Metabase, or Power BI.

Data

What data can you replicate?
From Azure SQL Database to PostgreSQL.

Weld syncs the objects the Azure SQL Database connector exposes into PostgreSQL, and you choose which tables and fields to include. The connector's docs list what is available.

    Weld MCP server

    Ask your agent.
    It queries PostgreSQL for you.

    Connect Claude, Cursor, ChatGPT or your own agent to Weld over MCP. It reads the Azure SQL Database context, finds the tables it needs and runs the query in PostgreSQL.

    Set up the MCP serverClaudeCursorChatGPTGemini
    Claude CodeOpus 5
    >

    Which Azure SQL Database tables do we have in PostgreSQL, and which is the largest?

    Looking up what Weld has synced from Azure SQL Database.

    ●weld·search_available_references
    ⎿raw.azure_sql_database.*
    tables, columns and freshness
    ●weld·get_reference_schema
    ⎿columns, types and nullability
    ●weld·run_query
    ⎿select count(*) from {{raw.azure_sql_database.…}}
    submitted
    ●weld·get_query_status
    ⎿DONE
    ●weld·get_query_result
    ⎿rows returned
    ✓Answered from Azure SQL Database data in PostgreSQL
    >Ask about your Azure SQL Database data
    Under the hood

    Technical considerations.
    What to expect.

    Incremental syncing
    Weld uses incremental syncing where supported by the Azure SQL Database API, loading only new and updated records to minimize data transfer and warehouse costs.
    Change data capture
    For Azure SQL Database, Weld can use log-based replication (CDC) to capture inserts, updates, and deletes without querying the entire table on every sync.
    Schema handling
    Weld automatically manages schema changes. If Azure SQL Database adds new fields, they're detected and added to the corresponding PostgreSQL tables.
    Data freshness
    Sync frequency depends on your Weld plan. Most connectors support schedules from every 5 minutes up to daily intervals.
    Security
    All data is encrypted in transit (TLS) and at rest. Weld is SOC 2 Type II compliant and supports IP whitelisting for database connections.
    Resources

    Keep reading.
    Guides, docs and schema.

    Documentation

    Azure SQL Database setup guide

    How to connect Azure SQL Database to Weld, step by step.

    Documentation

    PostgreSQL setup guide

    How to connect PostgreSQL to Weld, step by step.

    Connector

    Azure SQL Database connector

    Everything Weld does with Azure SQL Database.

    Connector

    PostgreSQL connector

    Everything Weld does with PostgreSQL.

    FAQ

    Common questions.
    About Azure SQL Database to PostgreSQL.

    Start syncing Azure SQL Database to PostgreSQL.

    Set up your Azure SQL Database data pipeline in minutes. No credit card required. Free for 14 days.

    Azure SQL DatabaseSource
    WeldWeld
    PostgreSQLWarehouse
    Start for freeTalk to us
    Related

    Related integrations.
    More with Azure SQL Database and PostgreSQL.

    View all