If the next key/data pair of the database is a duplicate data record
for the current key/data pair, move the cursor to the next key/data
pair in the database, and store the secondary key and primary
key/data pair in Current. MoveNextDuplicate
returns false if the next key/data pair of the database is not a
duplicate data record for the current key/data pair. 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, MoveNextDuplicate 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 MoveNextDuplicate( DatabaseEntry key, DatabaseEntry pkey, DatabaseEntry data, LockingInfo info ) |
Visual Basic (Declaration) |
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Public Function MoveNextDuplicate ( _ key As DatabaseEntry, _ pkey As DatabaseEntry, _ data As DatabaseEntry, _ info As LockingInfo _ ) As Boolean |
Visual C++ |
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public: bool MoveNextDuplicate( DatabaseEntry^ key, DatabaseEntry^ pkey, DatabaseEntry^ data, LockingInfo^ info ) |
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
- info
- Type: BerkeleyDB..::.LockingInfo
The locking behavior to use
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>)>).