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PolyBase で外部データソースとしてQoo10 を連携利用

CData ODBC Driver for Qoo10 とSQL Server 2019 のPolyBase を使って、リアルタイムQoo10 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 Qoo10 data を組み合わせて使うことで、SQL Server データと同じようにQoo10 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Qoo10 data の設定から、T-SQL クエリを使ったQoo10 data へのアクセスを行います。

The CData ODBC drivers offer unmatched performance for interacting with live Qoo10 data using PolyBase due to optimized data processing built into the driver. When you issue complex SQL queries from SQL Server to Qoo10, the driver pushes down supported SQL operations, like filters and aggregations, directly to Qoo10 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 Qoo10 data, using a single query to pull data from distributed sources.

Qoo10 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 Qoo10 Sys is created automatically).

Qoo10 に接続するには、ApiKey、Password、およびUser が必要です。

Qoo10 へのアクセスの設定

  • API Key を取得するためには、Qoo10 の営業担当者に依頼する必要があります。
  • Qoo10 営業担当社へ依頼すると後日、API Key が送られてきます。

Qoo10 アカウントの認証

次の接続プロパティを設定して接続します。

  • ApiKey:Qoo10 営業担当者から受け取ったAPI Key を設定。
  • User: にログインするためのユーザーID を設定。
  • Password: にログインするためのパスワードを設定。

Click "Test Connection" to ensure that the DSN is connected to Qoo10 properly. Navigate to the Tables tab to review the table definitions for Qoo10.

Qoo10 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 Qoo10 data.

NOTE: IDENTITY and SECRET correspond with the User and Password properties for Qoo10.

CREATE DATABASE SCOPED CREDENTIAL qoo10_creds
WITH IDENTITY = 'username', SECRET = 'password';

Create an External Data Source for Qoo10

Execute the following SQL command to create an external data source for Qoo10 with PolyBase, using the DSN and credentials configured earlier.

For Qoo10, 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_qoo10_source
WITH ( 
  LOCATION = 'odbc://SERVERNAME[:PORT]',
  CONNECTION_OPTIONS = 'DSN=CData Qoo10 Sys',
  -- PUSHDOWN = ON | OFF,
  CREDENTIAL = qoo10_creds
);

Qoo10 のExternal Table を作成

After creating the external data source, use CREATE EXTERNAL TABLE statements to link to Qoo10 data from your SQL Server instance. The table column definitions must match those exposed by the CData ODBC Driver for Qoo10. 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 Qoo10 GoodsDetail would look similar to the following:

CREATE EXTERNAL TABLE GoodsDetail(
  ItemNo [nvarchar](255) NULL,
  ItemTitle [nvarchar](255) NULL,
  ...
) WITH ( 
  LOCATION='GoodsDetail',
  DATA_SOURCE=cdata_qoo10_source
);

Having created external tables for Qoo10 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 Qoo10, freeing up local resources and computing power. Download a free, 30-day trial of the ODBC Driver for Qoo10 and start working with live Qoo10 data alongside your SQL Server data today.

 
 
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