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#!/usr/bin/env python
# Copyright 2016 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Sample that runs a file containing INSERT SQL statements in Big Query.
This could be used to run the INSERT statements in a mysqldump output such as
mysqldump --user=root \
--password='secret-password' \
--host=127.0.0.1 \
--no-create-info sample_db \
--skip-add-locks > sample_db_export.sql
To run, first create tables with the same names and columns as the sample
database. Then run this script.
python insert_sql.py my-project my_dataset sample_db_export.sql
"""
# [START insert_sql]
import argparse
from google.cloud import bigquery
def insert_sql(project, default_dataset, sql_path):
"""Run all the SQL statements in a SQL file."""
client = bigquery.Client(project=project)
with open(sql_path) as f:
for line in f:
line = line.strip()
if not line.startswith('INSERT'):
continue
print('Running query: {}{}'.format(
line[:60],
'...' if len(line) > 60 else ''))
query = client.run_sync_query(line)
# Set use_legacy_sql to False to enable standard SQL syntax.
# This is required to use the Data Manipulation Language features.
#
# For more information about enabling standard SQL, see:
# https://cloud.google.com/bigquery/sql-reference/enabling-standard-sql
query.use_legacy_sql = False
query.default_dataset = client.dataset(default_dataset)
query.run()
if __name__ == "__main__":
parser = argparse.ArgumentParser(
description=__doc__,
formatter_class=argparse.RawDescriptionHelpFormatter)
parser.add_argument('project', help='Google Cloud project name')
parser.add_argument(
'default_dataset', help='Default BigQuery dataset name')
parser.add_argument('sql_path', help='Path to SQL file')
args = parser.parse_args()
insert_sql(args.project, args.default_dataset, args.sql_path)
# [END insert_sql]