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DB-API Cursor to Google BigQuery.
Parameter Inheritancebuiltins.object > Cursor Methods closeMark the cursor as closed, preventing its further use.
executeexecute(operation, parameters=None, job_id=None, job_config=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.
parametersUnion[Mapping[str, Any], 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.
job_configgoogle.cloud.bigquery.job.QueryJobConfig
(Optional) Extra configuration options for the query job.
executemanyexecutemany(operation, seq_of_parameters)
Prepare and execute a database operation multiple times.
Parameters Name Description operationstr
A Google BigQuery query string.
seq_of_parametersUnion[Sequence[Mapping[str, Any], Sequence[Any]]]
Sequence of many sets of parameter values.
fetchallFetch all remaining results from the last execute*()
call.
Fetch multiple results from the last execute*()
call.
arraysize
attribute before calling execute()
to set the batch size. Parameter Name Description 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, but for consistency raise an error if cursor is closed.
setoutputsizesetoutputsize(size, column=None)
No-op, but for consistency raise an error if cursor is closed.
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 2025-08-07 UTC.
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