spec_arrow_fetch_arrow | R Documentation |
spec_arrow_fetch_arrow
dbFetchArrow()
always returns an object coercible to a data.frame with
as many rows as records were fetched and as many
columns as fields in the result set,
even if the result is a single value
or has one
or zero rows.
An attempt to fetch from a closed result set raises an error.
Fetching multi-row queries with one
or more columns by default returns the entire result.
The object returned by dbFetchArrow()
can also be passed to
nanoarrow::as_nanoarrow_array_stream()
to create a nanoarrow
array stream object that can be used to read the result set
in batches.
The chunk size is implementation-specific.
Other Arrow specifications:
spec_arrow_append_table_arrow
,
spec_arrow_create_table_arrow
,
spec_arrow_fetch_arrow_chunk
,
spec_arrow_get_query_arrow
,
spec_arrow_read_table_arrow
,
spec_arrow_send_query_arrow
,
spec_arrow_write_table_arrow
,
spec_result_clear_result
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.