Microsoft は、Azure Open Datasets を "現状有姿" で提供します。 Microsoft は、データセットの使用に関して、明示または黙示を問わず、いかなる保証も行わないものとし、条件を定めることもありません。 現地の法律の下で認められている範囲内で、Microsoft は、データセットの使用に起因する、直接的、派生的、特別、間接的、偶発的、または懲罰的なものを含めたいかなる損害または損失に対しても一切の責任を負わないものとします。
# This is a package in preview.
from azureml.opendatasets import SeattleSafety
from datetime import datetime
from dateutil import parser
end_date = parser.parse('2016-01-01')
start_date = parser.parse('2015-05-01')
safety = SeattleSafety(start_date=start_date, end_date=end_date)
safety = safety.to_pandas_dataframe()
from azure.storage.blob import BlockBlobServicefrom azure.storage.blob import BlobServiceClient, BlobClient, ContainerClient
if azure_storage_account_name is None or azure_storage_sas_token is None:
raise Exception(
"Provide your specific name and key for your Azure Storage account--see the Prerequisites section earlier.")
print('Looking for the first parquet under the folder ' +
folder_name + ' in container "' + container_name + '"...')
container_url = f"https://{azure_storage_account_name}.blob.core.windows.net/"
blob_service_client = BlobServiceClient(
container_url, azure_storage_sas_token if azure_storage_sas_token else None)
container_client = blob_service_client.get_container_client(container_name)
blobs = container_client.list_blobs(folder_name)
sorted_blobs = sorted(list(blobs), key=lambda e: e.name, reverse=True)
targetBlobName = ''
for blob in sorted_blobs:
if blob.name.startswith(folder_name) and blob.name.endswith('.parquet'):
targetBlobName = blob.name
break
print('Target blob to download: ' + targetBlobName)
_, filename = os.path.split(targetBlobName)
blob_client = container_client.get_blob_client(targetBlobName)
with open(filename, 'wb') as local_file:
blob_client.download_blob().download_to_stream(local_file)
# Read the parquet file into Pandas data frame
import pandas as pd
print('Reading the parquet file into Pandas data frame')
df = pd.read_parquet(filename)
# you can add your filter at below
print('Loaded as a Pandas data frame: ')
df
# This is a package in preview.
# You need to pip install azureml-opendatasets in Databricks cluster. https://learn.microsoft.com/azure/data-explorer/connect-from-databricks#install-the-python-library-on-your-azure-databricks-cluster
from azureml.opendatasets import SeattleSafety
from datetime import datetime
from dateutil import parser
end_date = parser.parse('2016-01-01')
start_date = parser.parse('2015-05-01')
safety = SeattleSafety(start_date=start_date, end_date=end_date)
safety = safety.to_spark_dataframe()
# SPARK read parquet, note that it won't load any data yet by now
df = spark.read.parquet(wasbs_path)
print('Register the DataFrame as a SQL temporary view: source')
df.createOrReplaceTempView('source')
# Display top 10 rows
print('Displaying top 10 rows: ')
display(spark.sql('SELECT * FROM source LIMIT 10'))
# This is a package in preview.
from azureml.opendatasets import SeattleSafety
from datetime import datetime
from dateutil import parser
end_date = parser.parse('2016-01-01')
start_date = parser.parse('2015-05-01')
safety = SeattleSafety(start_date=start_date, end_date=end_date)
safety = safety.to_spark_dataframe()
# SPARK read parquet, note that it won't load any data yet by now
df = spark.read.parquet(wasbs_path)
print('Register the DataFrame as a SQL temporary view: source')
df.createOrReplaceTempView('source')
# Display top 10 rows
print('Displaying top 10 rows: ')
display(spark.sql('SELECT * FROM source LIMIT 10'))
SELECT
TOP 100 *
FROM
OPENROWSET(
BULK 'https://azureopendatastorage.blob.core.windows.net/citydatacontainer/Safety/Release/city=Seattle/*.parquet',
FORMAT = 'parquet'
) AS [r];