A virtual table mapping might contain reusable transformations or mapplets that contain parameters. You can bind mapping parameters to the transformation or mapplet parameters in a virtual table mapping.

However, when a virtual table mapping contains parameters, the Data Integration Service applies the default parameter values from the mapping level. The Data Integration Service cannot bind values from a parameter file or from a parameter set to parameters in a virtual table mapping.

You can use a parameterized source that is connected to a virtual table mapping. The mapping uses the default parameter value.