How to Efficiently Import Multiple Text Files with Identical Names from Different Directories into a Database Using SSIS?

How to Import Text Files with Same Name and Schema But Different Directories into Database?

Problem:

You have multiple text files with identical names and schemas residing in different directories that need to be imported into a database table. The challenge lies in handling the varying directories.

Solution:

Utilize a Foreach File Container in SSIS and enable the Traverse Subfolders option.

Steps:

1. Create a Flat File Source (named "FFSrc") using the appropriate File Format.

2. Add a Foreach File Loop task to the package and set the following properties:

   • FileSpecification: "*.txt" (or desired file type)
   • Folder: Root directory containing the text file folders
   • ProcessSubfolders: True

3. Within the Foreach File Loop, assign the value of the current file to a variable using an expression:

   [User::CurrentFileName] = @[System::FileName]

4. Inside the Foreach File Loop, add a Dataflow task to process each file:

   • Within the Dataflow task, add a Flat File Source to import the text file using the "FFSrc" connection.
   • Assign the imported data to a variable for further processing.
   • Add an OLE DB Destination to load the data into the target table in the database.

5. Configure the ConnectionString property of the Flat File Source in the Dataflow task to use the variable created in Step 3:

   ConnectionString = @[User::CurrentFileName]

By utilizing the Foreach File Loop with the Traverse Subfolders option, SSIS can automatically iterate through all the files in different directories and import them into the database table, ensuring the same schema is applied across all files.

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