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Google SheetsData のPostgreSQL インターフェース

Google Sheets JDBC Driver のRemoting 機能を使用して、データアクセス用のPostgreSQL エントリポイントを作成します。

インターネット上には利用可能な膨大な数のPostgreSQL クライアントがあります。標準のドライバーからBI および分析ツールまで、PostgreSQL はデータアクセスのための人気の高いインタフェースです。 JDBC ドライバーを使用して、標準クライアントから接続できるPostgreSQL エントリポイントを作成することができます。

PostgreSQL データベースとしてGoogle Sheets data にアクセスするには、CData JDBC Driver for Google Sheets とJDBC 外部データラッパー(FDW)を使用します。ここでは、FDW をコンパイルしてインストールし、PostgreSQL サーバーからGoogle Sheets data をクエリします。

JDBC データソースにGoogle Sheets Data を設定

To connect to Google Sheets as a JDBC data source, you will need the following:

  • Driver JAR path: The JAR is located in the lib subfolder of the installation directory.
  • Driver class: cdata.jdbc.googlesheets.GoogleSheetsDriver

  • JDBC URL: The URL must start with "jdbc:googlesheets:" and can include any of the connection properties in name-value pairs separated with semicolons.

    You can connect to a spreadsheet by providing authentication to Google and then setting the Spreadsheet connection property to the name or feed link of the spreadsheet. If you want to view a list of information about the spreadsheets in your Google Drive, execute a query to the Spreadsheets view after you authenticate.

    ClientLogin (username/password authentication) has been officially deprecated since April 20, 2012 and is now no longer available. Instead, use the OAuth 2.0 authentication standard. To access Google APIs on behalf on individual users, you can use the embedded credentials or you can register your own OAuth app.

    OAuth also enables you to use a service account to connect on behalf of users in a Google Apps domain. To authenticate with a service account, you will need to register an application to obtain the OAuth JWT values.

    See the Getting Started chapter in the help documentation to connect to Google Sheets from different types of accounts: Google accounts, Google Apps accounts, and accounts using two-step verification.


    For assistance in constructing the JDBC URL, use the connection string designer built into the Google Sheets JDBC Driver.Either double-click the JAR file or execute the jar file from the command-line.

    java -jar cdata.jdbc.googlesheets.jar

    Fill in the connection properties and copy the connection string to the clipboard.

    A typical JDBC URL is below:


JDBC Foreign Data Wrapper をビルド

The Foreign Data Wrapper can be installed as an extension to PostgreSQL, without recompiling PostgreSQL.The jdbc2_fdw extension is used as an example.

  1. Add a symlink from the shared object for your version of the JRE to /usr/lib/ example: ln -s /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/server/ /usr/lib/
  2. Start the build: make install USE_PGXS=1

Google Sheets Data をPostgreSQL データベースとしてクエリ

After you have installed the extension, follow the steps below to start executing queries to Google Sheets data:

  1. Log into your database.
  2. Load the extension for the database: CREATE EXTENSION jdbc2_fdw;
  3. Create a server object for Google Sheets: CREATE SERVER GoogleSheets FOREIGN DATA WRAPPER jdbc2_fdw OPTIONS ( drivername 'cdata.jdbc.googlesheets.GoogleSheetsDriver', url 'jdbc:googlesheets:Spreadsheet=MySheet;InitiateOAuth=GETANDREFRESH', querytimeout '15', jarfile '/home/MyUser/CData/CData\ JDBC\ Driver\ for\ Salesforce MyDriverEdition/lib/cdata.jdbc.googlesheets.jar');
  4. Create a user mapping for the username and password of a user known to the MySQL daemon. CREATE USER MAPPING for postgres SERVER GoogleSheets OPTIONS ( username 'admin', password 'test');
  5. Create a foreign table in your local database: postgres=# CREATE FOREIGN TABLE orders ( orders_id text, orders_Shipcountry text, orders_OrderPrice numeric) SERVER GoogleSheets OPTIONS ( table_name 'orders');
You can now execute read/write commands to Google Sheets: postgres=# SELECT * FROM orders;