If the cursor is not yet initialized, MoveNextUnique is identical to
MoveFirst()()(). Otherwise, move the cursor to the next
non-duplicate key in the database, and store the secondary key and
primary key/data pair in Current. MoveNextUnique
returns false if no non-duplicate key/data pairs exist after the
cursor position in the database. If key, or
pkey, or 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, MoveNextUnique is successful, and any existing bytes
are returned.
Namespace:
BerkeleyDBAssembly: libdb_dotnet181 (in libdb_dotnet181.dll) Version: 18.1.32.0
Syntax
C# |
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public bool MoveNextUnique( DatabaseEntry key, DatabaseEntry pkey, DatabaseEntry data ) |
Visual Basic (Declaration) |
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Public Function MoveNextUnique ( _ key As DatabaseEntry, _ pkey As DatabaseEntry, _ data As DatabaseEntry _ ) As Boolean |
Visual C++ |
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public: bool MoveNextUnique( DatabaseEntry^ key, DatabaseEntry^ pkey, DatabaseEntry^ data ) |
Parameters
- key
- Type: BerkeleyDB..::.DatabaseEntry
The retrieved key in secondary db
- pkey
- Type: BerkeleyDB..::.DatabaseEntry
The key of the matching record in primary db
- data
- Type: BerkeleyDB..::.DatabaseEntry
The data of the matching record in primary db
Return Value
True if the cursor was positioned successfully, false otherwise.Remarks
If positioning the cursor fails, Current will contain
an empty KeyValuePair<(Of <(TKey, TValue>)>).