Migrating data from SQL Azure to PostgreSQL

This guide walks you through migrating data from SQL Azure to PostgreSQL in a few simple steps using ESF Database Migration Toolkit. Simplify complex migration tasks and save valuable time with our streamlined approach.

Prerequisite:

Step by Step Wizard:

  1. Configure SQL Azure Connection

    • Prerequisite:
      • Enable "Allow access to Azure services" in Azure SQL server settings
      • Add your client IP under Firewalls and virtual networks
    • In the "Choose a Data Source" dialog:
      • Select "SQL Azure"
    • Enter connection details:
      • Server name: e.g., esf.database.windows.net
      • Port: 1433 (default)
      • Authentication: Enter credentials
    • Load database options:
      • Click the Refresh Database button
      • Select target database from list
    • Load schema options:
      • Click the Refresh Schema button
      • Choose desired schema
    SQL Azure connection dialog showing server configuration and refresh controls
    Fig. 1: SQL Azure data source configuration

  2. Configure PostgreSQL Destination

    • In the "Choose a Destination" dialog:
      • Select "PostgreSQL"
    • Enter server connection details:
      • Server name: localhost (default)
      • Port: 5432 (default)
    • Provide authentication credentials:
      • Username: postgres (default)
      • Associated password
    • Configure character encoding:
      • Select database character set (default: UTF8)
      • Required for non-ASCII characters (e.g., German, French, Japanese)
    • Database selection/creation:
      • Select existing database or enter new database name
      • Click the Refresh button to list available databases
      • New databases are automatically created during migration
    • Schema configuration:
      • Enter or select target schema name (default: public)
      • Click the Refresh Schema button to list available schemas
    "Choose a Destination" dialog showing PostgreSQL configuration options including server settings, character set selection, and schema controls
    Fig. 2: PostgreSQL destination configuration

  3. In "Select Source Table(s) & View(s)" Dialog

    • Select migration objects: Choose tables or views to include in the migration.
      Select Tables & Views
      Fig. 3: Select tables and views
    • Modify table structure: Click the ellipsis (...) button to access table options and schema adjustments.
      Transform
      Fig. 4: Do transform
    • Configure field mapping: In the Field Mapping options:
      • Customize destination fields (name, data type, default value, comments)
      • Select data transfer method:
        • Overwrite Table (replace existing data)
        • Empty Data (truncate before insert)
        • Append Data (add to existing data)
        • Skip Table (exclude from transfer)
      • Apply data filters before transfer

  4. Execution Dialog

    • Start migration: Click "Submit" to initiate automated data transfer from SQL Azure to PostgreSQL.
      Execute
      Fig. 5: Execute migration
    • Monitor progress: Click "Browse Log" for real-time migration tracking, including issue resolution details.
    • Save configuration: Click "Save as job" to store settings for:
      • Quick reloads of migration jobs
      • Command-line execution (use: dmtc.exe --help for parameter options)

  5. Finished!

    After migration completes, the toolkit generates a comprehensive report for verifying migration accuracy. You can monitor progress as the automated process runs efficiently. For any questions or feedback, contact us – our team is ready to assist.

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