How to use Foreach Loop Container in SSIS?

To use a Foreach Loop Container in SSIS, follow these steps:

Open SQL Server Data Tools (SSDT) and create a new Integration Services project.
Drag and drop a Foreach Loop Container control flow element from the SSIS Toolbox onto the Control Flow design surface.
Double-click on the Foreach Loop Container to open its properties window.
In the properties window, set the Name and Description properties to something meaningful.
Specify the Enumerator and Enumerator Configuration by setting the following properties:
- Enumerator: the type of enumerator to use (e.g. Foreach File Enumerator, Foreach ADO Enumerator).
- Enumerator Configuration: the configuration options for the selected enumerator type.
Drag and drop control flow elements, such as tasks or other containers, into the Foreach Loop Container.
Connect the control flow elements within the Foreach Loop Container by drawing precedence constraints between them.
Configure the properties of each control flow element as needed.
Save and execute the SSIS package.

The Foreach Loop Container allows you to iterate through a collection of items, such as files in a directory or rows in a database table. The Enumerator property specifies the type of enumerator to use, and the Enumerator Configuration property specifies the configuration options for the selected enumerator type.

For example, if you want to import a set of CSV files into a database, you can use the Foreach File Enumerator to loop through the files in a specified directory. You can use expressions to dynamically set the file name and other properties for each iteration of the loop. You can then use other control flow elements within the Foreach Loop Container to process each file, such as using a Flat File Source to read the CSV data and a OLE DB Destination to write the data to a database table.

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