4) The attribute "Value invested" (the amount invested by a fund in a given asset) is one that always requires the Optionals field to be filled, since this field determines the two parameters of the invested asset : the code of the invested asset and its respective asset class.
Example 1 : Filling in the Optionals field to obtain the value invested in shares (Asset Class = STOCKS) of Microsoft (MSFT)
Example 2 : Filling in the Optionals field to obtain the value invested in other funds of the same Fund Manager
AmountInvestedInFundsOfTheSame = Fund manager
Function ECODATASET (returns a data table)