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PolyBase で外部データソースとしてConfluence を連携利用

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

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

Confluence 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 Confluence Sys is created automatically).

API Token を取得する方法

API token は、アカウントへの認証に必須です。トークンの生成には、Atlassian アカウントでサービスにログインし、API tokens > Create API token に進みます。生成されたトークンが表示されます。

Confluence Cloud Account への接続

Cloud アカウントへの接続には、以下のプロパティを設定します(Password は、Server Instance への接続時のみ必要で、Cloud Account への接続には不要になりました。):

  • User: Confluence サーバーに認証するユーザー名。
  • APIToken: 認証するユーザーに紐付けられたAPI Token。
  • Url: JIRA エンドポイントのURL。例: https://yoursitename.atlassian.net

Confluence Server Instance への接続

Server instance への接続には以下を設定します:

  • User: Confluence Instance に接続するユーザー名。
  • Password: Confluence Instance に接続するユーザーのパスワード。
  • Url: JIRA エンドポイントのURL。例: https://yoursitename.atlassian.net

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

Confluence 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 Confluence data.

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

Create an External Data Source for Confluence

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

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

Confluence のExternal Table を作成

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

CREATE EXTERNAL TABLE Pages(
  Key [nvarchar](255) NULL,
  Name [nvarchar](255) NULL,
  ...
) WITH ( 
  LOCATION='Pages',
  DATA_SOURCE=cdata_confluence_source
);

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

 
 
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