How to migrate Postgres to SQL? Last Updated : 23 Jul, 2025 Comments Improve Suggest changes Like Article Like Report When it comes to moving data from one database system to another, it is quite a tricky affair especially when one is transferring data from one DBMS, for instance, PostgreSQL to the other DBMS like SQL Server. SSIS is a very efficient data integration and migration tool where users can transfer data from one system to another irrespective of the differences between the two. In this article, we are going to discuss the complete process of moving data from the PostgreSQL database to the SQL Server database with the help of SSIS.Below are the steps that we are using to migrate our data from Postgres to SQL:Prepare your environmentCreate a New SSIS ProjectAdd a Data Flow TaskConfigure the ODBC SourceConfigure the OLE DB DestinationExecute the SSIS PackageVerify MigrationSteps for Migrating Data from PostgreSQL to SQL Server Using SSISStep 1: Prepare Your EnvironmentBefore starting the migration process, ensure you have the following prerequisites in place:SQL Server: Ensure you have a SQL Server instance running and accessible.PostgreSQL: Ensure your PostgreSQL database is accessible.SSIS: SQL Server Data Tools (SSDT) or Visual Studio with SSIS components installed.PostgreSQL ODBC Driver: Install the PostgreSQL ODBC driver on your SSIS server to enable connectivity.Step 2: Create TablesI have already a table named emps in postgres and now create a same table named as emps in SQL server also in which we can migrate data.Postgres TableSQL Server:SQL ServerStep 2: Create a New SSIS Project1. Open SSDT or Visual Studio:Launch your development environment.2. Create a New SSIS Project:Navigate to File > New > Project.Select Integration Services Project under the Business Intelligence templates.Name your project appropriately and click OK.Step 3: Add a Data Flow Task1. Drag and Drop Data Flow Task:In the Control Flow tab, drag and drop a Data Flow Task from the SSIS toolbox onto the design surface.Data Flow TaskRename the task to something meaningful, like "Postgres to SQL Server Data Migration".2. Double-Click the Data Flow Task:This action switches to the Data Flow tab where you will configure your data flow.Step 4: Configure the ODBC Source1. Add ODBC Source:ODBC SourceFrom the SSIS toolbox, drag and drop the ODBC Source component onto the Data Flow design surface.2. Configure ODBC Source:Double-click the ODBC Source component to open the ODBC Source Editor.Click on New ButtonClick New to configure a new ODBC connection.3. Set Up PostgreSQL Connection:In the Configure ODBC Connection Manager window, select New.Choose PostgreSQL Unicode from the Data Source Name (DSN) dropdown list.Enter your PostgreSQL username and password.Enter username and passwordClick Test Connection to ensure connectivity. If the test succeeds, click OK.4. Select Data Source:In the ODBC Source Editor, choose SQL Command as the Data access mode.Enter the query: SELECT * FROM emps.Click on Preview to check the data fetched from the PostgreSQL emps table.SQL QueryClick OK to close the editor.Step 5: Configure the OLE DB Destination1. Add OLE DB Destination:From the SSIS toolbox, drag and drop the OLE DB Destination component onto the Data Flow design surface.Connect ODBC to OLE DB Connect the ODBC Source to the OLE DB Destination by dragging the arrow from the source to the destination.2. Configure OLE DB Destination:Double-click the OLE DB Destination component to open the OLE DB Destination Editor.Click New to configure a new OLE DB connection.3. Set Up SQL Server Connection:In the Connection Manager window, click New.Enter your SQL Server details (Server name and Database name).Select database nameClick Test Connection to ensure connectivity. If the test succeeds, click OK.4. Select Destination Table:In the OLE DB Destination Editor, select the previously created emps table from SQL Server.Write table nameEnsure that the column mappings between the source and destination tables are correct.Click OK to close the editor.Step 6: Execute the SSIS Package1. Save and Build the Project:Save your SSIS project and build it to ensure there are no errors.2. Run the Package:Right-click on the package and select Execute Package.Click StartMonitor the progress in the Execution Results tab to ensure the data is being migrated successfully.Step 7: Validate the Migration1. Check SQL Server:Open SQL Server Management Studio (SSMS).Execute a query to verify the data in the emps table: SELECT * FROM emps.Ensure the data matches the data from the PostgreSQL emps table.ConclusionUsing SSIS to perform PostgreSQL to SQL Server migration involves creation of an SSIS project, development of the source and destination connections, development of data load transformation tasks that will enable the transfer of data. So if you have gone through all the steps discussed in this guide, you will be able to viey the mentioned emps table from PostgreSQL to SQL Server. This includes configuring ODBC and OLE DB components for updating and verifying the data, followed by an extensive quality assurance check to ensure the inaccuracies are not there any longer. In addition to enabling the transfer of data to be less arduous, the use of this tool improves on the integrity of the process, and for this reason, is one of the tools that is useful to a DBA who has to manage systems that are diverse. Comment More infoAdvertise with us Next Article What is SQL? M minalpandey6899 Follow Improve Article Tags : SQL Database Migration Similar Reads SQL Tutorial Structured Query Language (SQL) is the standard language used to interact with relational databases. Mainly used to manage data. Whether you want to create, delete, update or read data, SQL provides the structure and commands to perform these operations. Widely supported across various database syst 8 min read BasicsWhat is SQL?Structured Query Language (SQL) is the standard language used to interact with relational databases. Allows users to store, retrieve, update, and manage data efficiently through simple commands. 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