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google-cloud-bigquery
Advanced tools
|GA| |pypi| |versions|
Querying massive datasets can be time consuming and expensive without the
right hardware and infrastructure. Google BigQuery
_ solves this problem by
enabling super-fast, SQL queries against append-mostly tables, using the
processing power of Google's infrastructure.
Client Library Documentation
_Product Documentation
_.. |GA| image:: https://img.shields.io/badge/support-GA-gold.svg :target: https://github.com/googleapis/google-cloud-python/blob/main/README.rst#general-availability .. |pypi| image:: https://img.shields.io/pypi/v/google-cloud-bigquery.svg :target: https://pypi.org/project/google-cloud-bigquery/ .. |versions| image:: https://img.shields.io/pypi/pyversions/google-cloud-bigquery.svg :target: https://pypi.org/project/google-cloud-bigquery/ .. _BigQuery: https://cloud.google.com/bigquery/what-is-bigquery .. _Client Library Documentation: https://googleapis.dev/python/bigquery/latest .. _Product Documentation: https://cloud.google.com/bigquery/docs/reference/v2/
In order to use this library, you first need to go through the following steps:
Select or create a Cloud Platform project.
_Enable billing for your project.
_Enable the Google Cloud BigQuery API.
_Setup Authentication.
_.. _Select or create a Cloud Platform project.: https://console.cloud.google.com/project .. _Enable billing for your project.: https://cloud.google.com/billing/docs/how-to/modify-project#enable_billing_for_a_project .. _Enable the Google Cloud BigQuery API.: https://cloud.google.com/bigquery .. _Setup Authentication.: https://googleapis.dev/python/google-api-core/latest/auth.html
Installation
Install this library in a `virtualenv`_ using pip. `virtualenv`_ is a tool to
create isolated Python environments. The basic problem it addresses is one of
dependencies and versions, and indirectly permissions.
With `virtualenv`_, it's possible to install this library without needing system
install permissions, and without clashing with the installed system
dependencies.
.. _`virtualenv`: https://virtualenv.pypa.io/en/latest/
Supported Python Versions
^^^^^^^^^^^^^^^^^^^^^^^^^
Python >= 3.7
Unsupported Python Versions
^^^^^^^^^^^^^^^^^^^^^^^^^^^
Python == 2.7, Python == 3.5, Python == 3.6.
The last version of this library compatible with Python 2.7 and 3.5 is
`google-cloud-bigquery==1.28.0`.
Mac/Linux
^^^^^^^^^
.. code-block:: console
pip install virtualenv
virtualenv <your-env>
source <your-env>/bin/activate
<your-env>/bin/pip install google-cloud-bigquery
Windows
^^^^^^^
.. code-block:: console
pip install virtualenv
virtualenv <your-env>
<your-env>\Scripts\activate
<your-env>\Scripts\pip.exe install google-cloud-bigquery
Example Usage
-------------
Perform a query
.. code:: python
from google.cloud import bigquery
client = bigquery.Client()
# Perform a query.
QUERY = (
'SELECT name FROM `bigquery-public-data.usa_names.usa_1910_2013` '
'WHERE state = "TX" '
'LIMIT 100')
query_job = client.query(QUERY) # API request
rows = query_job.result() # Waits for query to finish
for row in rows:
print(row.name)
This application uses OpenTelemetry
_ to output tracing data from
API calls to BigQuery. To enable OpenTelemetry tracing in
the BigQuery client the following PyPI packages need to be installed:
.. _OpenTelemetry: https://opentelemetry.io
.. code-block:: console
pip install google-cloud-bigquery[opentelemetry] opentelemetry-exporter-gcp-trace
After installation, OpenTelemetry can be used in the BigQuery client and in BigQuery jobs. First, however, an exporter must be specified for where the trace data will be outputted to. An example of this can be found here:
.. code-block:: python
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import BatchSpanProcessor
from opentelemetry.exporter.cloud_trace import CloudTraceSpanExporter
tracer_provider = TracerProvider()
tracer_provider = BatchSpanProcessor(CloudTraceSpanExporter())
trace.set_tracer_provider(TracerProvider())
In this example all tracing data will be published to the Google
Cloud Trace
_ console. For more information on OpenTelemetry, please consult the OpenTelemetry documentation
_.
.. _OpenTelemetry documentation: https://opentelemetry-python.readthedocs.io .. _Cloud Trace: https://cloud.google.com/trace
FAQs
Google BigQuery API client library
We found that google-cloud-bigquery demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 3 open source maintainers collaborating on the project.
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