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DB-API Cursor to Google BigQuery.
Parameter Name Description connectionConnection
A DB-API connection to Google BigQuery.
Inheritancebuiltins.object > Cursor Methods closeNo-op.
executeexecute(operation, parameters=None, job_id=None)
Prepare and execute a database operation.
.. note:: When setting query parameters, values which are "text" (unicode
in Python2, str
in Python3) will use the 'STRING' BigQuery type. Values which are "bytes" (str
in Python2, bytes
in Python3), will use using the 'BYTES' type.
A ``datetime.datetime`` parameter without timezone information uses
the 'DATETIME' BigQuery type (example: Global Pi Day Celebration
March 14, 2017 at 1:59pm). A ``datetime.datetime`` parameter with
timezone information uses the 'TIMESTAMP' BigQuery type (example:
a wedding on April 29, 2011 at 11am, British Summer Time).
For more information about BigQuery data types, see:
https://cloud.google.com/bigquery/docs/reference/standard-sql/data-types
``STRUCT``/``RECORD`` and ``REPEATED`` query parameters are not
yet supported. See:
https://github.com/GoogleCloudPlatform/google-cloud-python/issues/3524
Parameters Name Description operation str
A Google BigQuery query string.
parametersMapping[str, Any] or Sequence[Any]
(Optional) dictionary or sequence of parameter values.
job_idstr
(Optional) The job_id to use. If not set, a job ID is generated at random.
executemanyexecutemany(operation, seq_of_parameters)
Prepare and execute a database operation multiple times.
Parameter Name Description operationstr
A Google BigQuery query string.
fetchallFetch all remaining results from the last execute*()
call.
Fetch multiple results from the last execute*()
call.
.. note:: The size parameter is not used for the request/response size. Set the arraysize
attribute before calling execute()
to set the batch size.
int
(Optional) Maximum number of rows to return. Defaults to the arraysize
property value. If arraysize
is not set, it defaults to 1
.
Fetch a single row from the results of the last execute*()
call.
No-op.
setoutputsizesetoutputsize(size, column=None)
No-op.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-07-24 UTC.
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