Unit
IBDataset

Declaration
TIBOQuery = class(TIBOBaseQuery)

Description
This component is designed to emulate the complete behavior of the BDE's TQuery component.

It is important to note that Delphi 3 does not make use of TParams for its input parameters but instead uses the native TIB_Row class. It emulates the TParams class quite a bit however so there should be few problems when converting. Otherwise, I use the TParams for input parameters and IBO still automatically generates them for you. Once prepared the data type is filled in for each one as well.