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# Copyright 2017 Google, Inc
#
# 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.
# [START spanner_quickstart]
# Imports the Google Cloud client library
require "google/cloud/spanner"
# Your Google Cloud Platform project ID
project_id = "YOUR_PROJECT_ID"
# Instantiates a client
spanner = Google::Cloud::Spanner.new project: project_id
# Your Cloud Spanner instance ID
instance_id = "my-instance"
# Your Cloud Spanner database ID
database_id = "my-database"
# Gets a reference to a Cloud Spanner instance database
database_client = spanner.client instance_id, database_id
# Execute a simple SQL statement
database_client.transaction do |transaction|
results = transaction.execute "SELECT 1"
results.rows.each do |row|
puts row
end
end
# [END spanner_quickstart]
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