X-Ray Basic macro is displaying API objects and is exploring their content. It also displays most Basic datatypes. Its integration of API documentation for services, interfaces, properties and methods is limited to OpenOffice.
MRI It is not always clear at design time which services a UNO object actually supports. MRI (My Reflection and Introspection) displays the properties, methods, services, interfaces which are provided by an object variable.
Lanedo has some examples of working with data sources at:
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