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PolyBase で外部データソースとしてGaroon を連携利用

CData ODBC Driver for Garoon とSQL Server 2019 のPolyBase を使って、リアルタイムGaroon data に外部データソースとしてアクセス。

SQL Server のPolyBase は、データベーステーブルをクエリするTransact-SQL シンタックスを使って、外部データにクエリする仕組みです。 CData ODBC Drivers for Garoon data を組み合わせて使うことで、SQL Server データと同じようにGaroon data へのアクセスが可能です。 本記事では、PolyBase 外部データソースへのGaroon data の設定から、T-SQL クエリを使ったGaroon data へのアクセスを行います。

The CData ODBC drivers offer unmatched performance for interacting with live Garoon data using PolyBase due to optimized data processing built into the driver. When you issue complex SQL queries from SQL Server to Garoon, the driver pushes down supported SQL operations, like filters and aggregations, directly to Garoon and utilizes the embedded SQL engine to process unsupported operations (often SQL functions and JOIN operations) client-side. And with PolyBase, you can also join SQL Server data with Garoon data, using a single query to pull data from distributed sources.

Garoon への接続

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs. To create an external data source in SQL Server using PolyBase, configure a System DSN (CData Garoon Sys is created automatically).

Garoon への認証は、パスワード認証、Basic 認証、クライアントSSL をサポートしています。

パスワード認証

Garoon への認証には、以下を設定する必要があります。

  • Url:アカウントのURL。
  • User:アカウントのユーザー名。
  • Password:アカウントのパスワード。

Basic 認証

Basic 認証セキュリティ機能がドメインに設定されている場合は、BasicAuthUser とBasicAuthPassword の追加ログイン資格情報を指定します。Basic 認証ではUser とPassword に加えて、これらのクレデンシャルが必要です。

クライアントSSL

Basic 認証の代わりに、クライアント証明書を指定して本製品を認証できます。 SSLClientCert、SSLClientCertType、 SSLClientCertSubject、 およびSSLClientCertPassword を設定します。 さらに、User とPassword をGaroon のログイン資格情報に設定します。

Click "Test Connection" to ensure that the DSN is connected to Garoon properly. Navigate to the Tables tab to review the table definitions for Garoon.

Garoon Data の外部データソースの作成

After configuring the connection, you need to create a master encryption key and a credential database for the external data source.

Creating a Master Encryption Key

Execute the following SQL command to create a new master key, 'ENCRYPTION,' to encrypt the credentials for the external data source.

CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'password';

Creating a Credential Database

Execute the following SQL command to create credentials for the external data source connected to Garoon data.

NOTE: IDENTITY and SECRET correspond with the User and Password properties for Garoon.

CREATE DATABASE SCOPED CREDENTIAL garoon_creds
WITH IDENTITY = 'username', SECRET = 'password';

Create an External Data Source for Garoon

Execute the following SQL command to create an external data source for Garoon with PolyBase, using the DSN and credentials configured earlier.

For Garoon, set SERVERNAME to 'localhost' or '127.0.0.1' and leave PORT empty. PUSHDOWN is set to ON by default, meaning the ODBC Driver can leverage server-side processing for complex queries.

CREATE EXTERNAL DATA SOURCE cdata_garoon_source
WITH ( 
  LOCATION = 'odbc://SERVERNAME[:PORT]',
  CONNECTION_OPTIONS = 'DSN=CData Garoon Sys',
  -- PUSHDOWN = ON | OFF,
  CREDENTIAL = garoon_creds
);

Garoon のExternal Table を作成

After creating the external data source, use CREATE EXTERNAL TABLE statements to link to Garoon data from your SQL Server instance. The table column definitions must match those exposed by the CData ODBC Driver for Garoon. You can refer to the Tables tab of the DSN Configuration Wizard to see the table definition.

Sample CREATE TABLE Statement

The statement to create an external table based on a Garoon Events would look similar to the following:

CREATE EXTERNAL TABLE Events(
  Id [nvarchar](255) NULL,
  EventMenu [nvarchar](255) NULL,
  ...
) WITH ( 
  LOCATION='Events',
  DATA_SOURCE=cdata_garoon_source
);

Having created external tables for Garoon in your SQL Server instance, you are now able to query local and remote data simultaneously. Thanks to built-in query processing in the CData ODBC Driver, you know that as much query processing as possible is being pushed to Garoon, freeing up local resources and computing power. Download a free, 30-day trial of the ODBC Driver for Garoon and start working with live Garoon data alongside your SQL Server data today.

 
 
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