how to load csv file dynamically in ssis

In the world of data integration, SSIS (SQL Server Integration Services) is one of the most popular ETL (Extract, Transform, Load) tools. One common requirement when working with data in SSIS is to load CSV (Comma Separated Values) files dynamically into the package. In this article, we will discuss how to achieve this goal using SSIS.

Step 1: Understanding the Problem

Before we dive into the solution, let's first understand the problem we are trying to solve. Suppose we have a folder that contains multiple CSV files, and we need to load these files dynamically into an SSIS package. The challenge here is that we don't know the names of the files or the number of files beforehand. Therefore, we need a solution that can dynamically detect and load these files into the package.

Step 2: Creating a Foreach Loop Container

To load CSV files dynamically in SSIS, we need to use a Foreach Loop Container. This container is used to loop through a set of files or folders and perform an action on each iteration. In our case, we will use the Foreach Loop Container to loop through the CSV files in the folder and load them into the package.

Step 3: Configuring the Foreach Loop Container

Next, we need to configure the Foreach Loop Container to detect and loop through CSV files in the folder. To do this, we need to set the enumerator type to Foreach File Enumerator, set the folder path to the folder that contains the CSV files, and set the file mask to *.csv. This will ensure that the container only loops through CSV files in the folder.

Step 4: Configuring the Connection Manager

After configuring the Foreach Loop Container, we need to configure the Connection Manager to connect to the CSV files. To do this, we need to use the Flat File Connection Manager. We can configure this connection manager to dynamically detect and load each CSV file in the folder by using the following expressions:- ConnectionString: @[User::FilePath] \"\\\\\" @[User::FileName]- FilePath: Set this to the folder path that was set in the Foreach Loop Container.- FileName: Set this to the name of the current CSV file that is being processed in the loop.

Step 5: Configuring the Data Flow Task

Finally, we need to configure the Data Flow Task to load the data from the CSV files into the destination. To do this, we can use the Flat File Source to extract data from each CSV file and the destination of our choice (e.g., SQL Server Destination) to load data into the destination.

Conclusion

In conclusion, loading CSV files dynamically in SSIS is a common requirement when working with data integration. Using the Foreach Loop Container, Flat File Connection Manager, and Flat File Source, we can dynamically detect and load CSV files into an SSIS package. By following the steps outlined in this article, you should be able to load CSV files into your packages dynamically with ease.