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Step-by-Step Guide: Connecting to Oracle Database and Retrieving Data Using Dataflow task in SSIS Package

Connecting to Oracle Database and Retrieving Data in SSIS and retrieving data using Dataflow task in ssis package required additional steps. Unlike SQL database to connect oracle it requires Oracle connectivity files. Based on installation version of oracle install oracle client, ODAC and create a ora file. Read how to create a TNSNAMES.ora file here.

Data Flow task in SSIS

Connecting to Oracle Database and Retrieving Data in SSIS

  1. Install the Oracle Data Access Components (ODAC) on the machine where SSIS is installed. Ensure you choose the appropriate version of ODAC that matches your SSIS and Oracle database versions.
  2. Open SQL Server Data Tools (SSDT) or SQL Server Business Intelligence Development Studio (BIDS), depending on your SQL Server version.
  3. Create a new Integration Services project or open an existing project in SSDT or BIDS.
  4. Within the SSIS package, drag and drop a Data Flow task from the SSIS Toolbox onto the Control Flow design surface.
  5. Double-click the Data Flow task to switch to the Data Flow design surface.
  6. Inside the Data Flow task, drag and drop an “ADO.NET Source” component from the SSIS Toolbox onto the design surface. This component will allow you to connect to the Oracle database and fetch the data.
  7. Double-click the “ADO.NET Source” component to open the editor.
  8. In the ADO.NET Source editor, click the “New” button next to the “Connection Manager” property to create a new ADO.NET connection.
  9. In the Connection Manager editor, select “ADO.NET” as the provider and provide the necessary connection details for your Oracle database, including the server name, database name, and credentials. Test the connection to ensure its success.
  10. Click “OK” to close the Connection Manager editor and return to the ADO.NET Source editor.
  11. In the ADO.NET Source editor, specify your query in the “SQL command text” property. This query will be executed against the Oracle database to retrieve the desired data. You can write any valid SQL query here.
  12. Configure any other required properties in the ADO.NET Source editor, such as column mappings, data types, and transformations.
  13. Click “OK” to close the ADO.NET Source editor.
  14. Continue building your SSIS package by adding additional components and tasks, if needed, to perform transformations, data cleansing, or load the retrieved data into another destination.
  15. Save the SSIS package.
  16. Execute the SSIS package to connect to the Oracle database, execute the query, and retrieve the data specified in the Data Flow task. You can manually run the package or schedule it to run at specific intervals.

By following these step-by-step instructions, you should be able to connect to an Oracle database in an SSIS package and retrieve data using a query in the Data Flow task. Remember to adjust the steps based on your specific SSIS version and Oracle database configuration.

Power BI interview questions for experienced and freshers.

Microsoft article for oracle connectivity is here.

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