SQL Server to Postgres Migration via SQL Server Integration Services

SQL Server Integration Services (SSIS) is a powerful framework to implement complicated data integration and transformations scenarios. It can solve wide range of database administration tasks such as managing SQL Server objects, mining and cleansing the data. Also, SSIS can be used to migrate from SQL Server to Postgres following these steps:

• Install ODBC Driver for proper version of Postgres with respect to OS bitness (x86/x64)
• Open SQL Server Management Studio, highlight the source database, right-click and choose Tasks > Export Data item of the popup menu
• Select data source as "SQL Server Native Clients" and the destination as ".Net Framework Data Provider for ODBC"
• Set the connecting string for the Postgres database. For 32-bit systems:

  Driver={PostgreSQL UNICODE};Server=host;Port=;Database=dbname;Uid=username;Pwd=password;
  

  For 64-bit systems:

  Driver={PostgreSQL UNICODE (x64)};Server=host;Port=;Database=dbname;Uid=username;Pwd=password;
  

  Click "Test Connection" to make sure the connection is successful.
• Select SQL Server tables to migrate. Free to edit the default type mapping of SQL Server to Postgres migration with respect to these rules.

Data migration can be a complicated and time-consuming process (especially for large corporate scale databases), that includes many steps. To ensure a safe and smooth migration, responsible staff must have deep understanding of the data structure of both SQL Server and Postgres databases. It is extremely important to track data accuracy during the database migration to avoid data loss or corruption.

Many specialists use advanced database migration software to reduce the time and effort being spent for the procedure. One of such tool is SQL Server to Postgres converter.

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