Data Writing

There are a few options to write data to DolphinDB server using the C++ API. This section explains the differences between these options and their optimal use cases.

The following table lists differences of write options.


Write Option	Description
MultithreadedTableWriter	multi-threaded, asynchronous writing write data by row built-in data buffer queue
tableInsert / insert into	synchronous writing easy and fast to call
PartitionedTableAppender	synchronous writing append with table concurrent writes by partition
AutoFitTableAppender	automatic data type conversion before writing append with table single-threaded, synchronous writing
AutoFitTableUpsert	automatic data type conversion before writing upsert with table single-threaded, synchronous writing
BatchTableWriter (Deprecated)	real-time data drop, data write by rows single-threaded, synchronous writing