As MSDN describes, SQL Server Integration Services (SSIS) transformations are the components in the data flow of a package that data. Transformations can also perform lookup operations and generate sample datasets
The Balanced Data Distributor (BDD) is a new SSIS transform which takes a single input and distributes the rows to one or more outputs uniformly via multithreading. The transform takes one pipeline buffer worth of rows at a time and moves it to the next output in a round robin fashion.
It’s balanced and synchronous so if one of the downstream transforms or destinations is slower than the others, the rest of the pipeline will stall so this transform works best if all of the outputs have identical transforms and destinations. The intention of BDD is to improve performance via multi-threading.
You can download the Balanced Data Distributor (BDD) Transform here
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