If the cursor is not yet initialized, MovePrevUnique is identical to 
            MoveLast()()(). Otherwise, move the cursor to the previous
            non-duplicate key in the database, and store that key and associated
            datum in Current. MovePrevUnique will return false if
            ntheo non-duplicate key/data pairs exist after the cursor position in
            database. If either the key or the data is partial
            DatabaseEntry, its
            PartialLen bytes starting
            PartialOffset bytes from the beginning
            of the retrieved data record are returned as if they comprised the
            entire record. If any or all of the specified bytes do not exist
            in the record, MovePrevUnique is successful, and any existing
            bytes are returned.
            
    Namespace: 
   BerkeleyDBAssembly: libdb_dotnet53 (in libdb_dotnet53.dll) Version: 5.3.28.0
 Syntax
Syntax
| C# | 
|---|
| public bool MovePrevUnique( DatabaseEntry key, DatabaseEntry data ) | 
| Visual Basic (Declaration) | 
|---|
| Public Function MovePrevUnique ( _ key As DatabaseEntry, _ data As DatabaseEntry _ ) As Boolean | 
| Visual C++ | 
|---|
| public: bool MovePrevUnique( DatabaseEntry^ key, DatabaseEntry^ data ) | 
Parameters
- key
- Type: BerkeleyDB..::.DatabaseEntry
 The retrieved key
- data
- Type: BerkeleyDB..::.DatabaseEntry
 The retrieved data
Return Value
True if the cursor was positioned successfully, false otherwise. Remarks
Remarks
            If positioning the cursor fails, Current will contain
            an empty KeyValuePair<(Of <(TKey, TValue>)>).
            





