Transaction Control transformation allows you to commit or rollback individual records based on a certain condition. By default, Integration service commits the data based on the properties you define at the session task level. Using the Commit Interval property, Integration service commits or rolls back the data into the target. Suppose you define the Commit interval as 10,000, Integration service will commit the data after every 10,000 records. When you use Transaction Control transformation, you get the control at each record to commit or rollback.
When you use Transaction Control transformation, you need to define the condition in the expression editor of the Transaction Control transformation. When you run the process, the data enters the Transaction Control transformation in a row-wise manner. The transaction Control transformation evaluates each row, based on which it commits or rolls back the data.
A sample mapping using Transaction Control transformation...