CData Cloud は、クラウドホスト型のソリューションで、複数の標準サービスやプロトコルにまたがるTeradata へのアクセスを実現します。SQL Server データベースに接続できるアプリケーションであれば、CData Cloud を介してTeradata に接続できます。
CData Cloud により、他のOData エンドポイントや標準SQL Server と同じように、Teradata への接続を標準化し、構成することができます。
このページでは、CData Cloud でのTeradata への接続の確立 のガイド、利用可能なリソースに関する情報、および使用可能な接続プロパティのリファレンスについて説明します。
接続の確立 は、CData Cloud にデータベースを作成するためのTeradata への認証方法と必要な接続プロパティの設定方法について示します。
利用可能な標準サービスを経由してTeradata からデータにアクセスする方法と、CData Cloud の管理については、CData Cloud ドキュメント で詳しく説明します。
Database タブで対応するアイコンを選択して、Teradata に接続します。必須プロパティはSettings にリストされています。Advanced タブには、通常は必要ない接続プロパティが表示されます。
次のプロパティを設定します。
| プロパティ | 説明 |
| DataSource | The Teradata server name or, equivalently, the DBC Name or TDPID. |
| AuthScheme | Specifies the Logon Mechanism, which determines the connection's authentication and encryption capabilities |
| User | 認証するユーザーのユーザーID を指定します。 |
| Password | 認証するユーザーのパスワードを指定します。 |
| Database | The database selected as the default database when a Teradata connection is opened. |
| Port | Connects to the Teradata Database on the TCP/IP port specified. The default Teradata Database port is 1025. |
| Account | Specifies an account string to override the default account string defined for the Teradata Database user. |
| プロパティ | 説明 |
| Verbosity | ログファイルのVerbosity レベルを指定し、記録される情報の詳細度を制御します。サポートされる値の範囲は1から5までです。 |
| プロパティ | 説明 |
| BrowsableSchemas | レポートされるスキーマを利用可能なすべてのスキーマのサブセットに制限するオプション設定。例えば、 BrowsableSchemas=SchemaA,SchemaB,SchemaC です。 |
| プロパティ | 説明 |
| DisableAutoCommitInBatch | Specifies whether or not disable the autocommit when executing the batch operation. |
| HttpsPort | Connects to the database on the Transmission Control Protocol/Internet Protocol (TCP/IP) port specified for HTTPS/TLS connections. |
| MaxRows | 集計やGROUP BY を含まないクエリで返される最大行数を指定します。 |
| SslCa | Specifies the file name of a PEM file that contains Certificate Authority (CA) certificates for use with SSLMODE=VERIFY-CA or VERIFY-FULL. |
| SslCaPath | Specifies a directory of PEM files that contain Certificate Authority (CA) certificates for use with SSLMODE=VERIFY-CA or VERIFY-FULL. |
| SslMode | Specifies the mode for connections to the database. |
| SslProtocol | Specifies the TLS protocol for HTTPS/TLS connections. |
| ThrowsKeyNotFound | 更新された行がない場合に例外をスローするかどうかを指定します。 |
| Timeout | provider がタイムアウトエラーを返すまでにサーバーからの応答を待機する最大時間を秒単位で指定します。 |
| UpperCaseIdentifiers | This property reports all identifiers in uppercase. This is the default for Oracle databases and thus allows better integration with Oracle tools such as the Oracle Database Gateway. |
| UseXViews | Specifies which Data Dictionary views should be queried to return result sets from DatabaseMetaData methods. |
このセクションでは、本プロバイダーの接続文字列で設定可能なAuthentication プロパティの全リストを提供します。
| プロパティ | 説明 |
| DataSource | The Teradata server name or, equivalently, the DBC Name or TDPID. |
| AuthScheme | Specifies the Logon Mechanism, which determines the connection's authentication and encryption capabilities |
| User | 認証するユーザーのユーザーID を指定します。 |
| Password | 認証するユーザーのパスワードを指定します。 |
| Database | The database selected as the default database when a Teradata connection is opened. |
| Port | Connects to the Teradata Database on the TCP/IP port specified. The default Teradata Database port is 1025. |
| Account | Specifies an account string to override the default account string defined for the Teradata Database user. |
The Teradata server name or, equivalently, the DBC Name or TDPID.
string
""
The Teradata server name or, equivalently, the DBC Name or TDPID.
Specifies the Logon Mechanism, which determines the connection's authentication and encryption capabilities
string
"TD2"
Specifies the Logon Mechanism, which determines the connection's authentication and encryption capabilities
The database selected as the default database when a Teradata connection is opened.
string
""
The database selected as the default database when a Teradata connection is opened.
Connects to the Teradata Database on the TCP/IP port specified. The default Teradata Database port is 1025.
string
"1025"
Connects to the Teradata Database on the TCP/IP port specified. The default Teradata Database port is 1025.
Specifies an account string to override the default account string defined for the Teradata Database user.
string
""
Specifies an account string to override the default account string defined for the Teradata Database user. Accounts are used by the Teradata Database for workload management and resource usage monitoring.
このセクションでは、本プロバイダーの接続文字列で設定可能なLogging プロパティの全リストを提供します。
| プロパティ | 説明 |
| Verbosity | ログファイルのVerbosity レベルを指定し、記録される情報の詳細度を制御します。サポートされる値の範囲は1から5までです。 |
ログファイルのVerbosity レベルを指定し、記録される情報の詳細度を制御します。サポートされる値の範囲は1から5までです。
string
"1"
このプロパティは、Cloud がログファイルに含める詳細レベルを定義します。 Verbosity レベルを高くするとログに記録される情報の詳細が増えますが、ログファイルが大きくなり取り込まれるデータが増えるためパフォーマンスが低下する可能性があります。
デフォルトのVerbosity レベルは1で、通常の運用にはこれが推奨されます。 より高いVerbosity レベルは主にデバッグを目的としています。 各レベルの詳細については、ログ を参照してください。
LogModules プロパティと組み合わせることで、Verbosity は特定の情報カテゴリに対するログの詳細度を調整できます。
このセクションでは、本プロバイダーの接続文字列で設定可能なSchema プロパティの全リストを提供します。
| プロパティ | 説明 |
| BrowsableSchemas | レポートされるスキーマを利用可能なすべてのスキーマのサブセットに制限するオプション設定。例えば、 BrowsableSchemas=SchemaA,SchemaB,SchemaC です。 |
レポートされるスキーマを利用可能なすべてのスキーマのサブセットに制限するオプション設定。例えば、 BrowsableSchemas=SchemaA,SchemaB,SchemaC です。
string
""
利用可能なデータベーススキーマをすべてリストすると余分な時間がかかり、パフォーマンスが低下します。 接続文字列にスキーマのリストを指定することで、時間を節約しパフォーマンスを向上させることができます。
このセクションでは、本プロバイダーの接続文字列で設定可能なMiscellaneous プロパティの全リストを提供します。
| プロパティ | 説明 |
| DisableAutoCommitInBatch | Specifies whether or not disable the autocommit when executing the batch operation. |
| HttpsPort | Connects to the database on the Transmission Control Protocol/Internet Protocol (TCP/IP) port specified for HTTPS/TLS connections. |
| MaxRows | 集計やGROUP BY を含まないクエリで返される最大行数を指定します。 |
| SslCa | Specifies the file name of a PEM file that contains Certificate Authority (CA) certificates for use with SSLMODE=VERIFY-CA or VERIFY-FULL. |
| SslCaPath | Specifies a directory of PEM files that contain Certificate Authority (CA) certificates for use with SSLMODE=VERIFY-CA or VERIFY-FULL. |
| SslMode | Specifies the mode for connections to the database. |
| SslProtocol | Specifies the TLS protocol for HTTPS/TLS connections. |
| ThrowsKeyNotFound | 更新された行がない場合に例外をスローするかどうかを指定します。 |
| Timeout | provider がタイムアウトエラーを返すまでにサーバーからの応答を待機する最大時間を秒単位で指定します。 |
| UpperCaseIdentifiers | This property reports all identifiers in uppercase. This is the default for Oracle databases and thus allows better integration with Oracle tools such as the Oracle Database Gateway. |
| UseXViews | Specifies which Data Dictionary views should be queried to return result sets from DatabaseMetaData methods. |
Specifies whether or not disable the autocommit when executing the batch operation.
bool
false
Specifies whether or not disable the autocommit when executing the batch operation.
Connects to the database on the Transmission Control Protocol/Internet Protocol (TCP/IP) port specified for HTTPS/TLS connections.
string
""
The default port is 443 for HTTPS/TLS connections to the database. HTTPS/TLS connections are available with Teradata JDBC Driver 17.10.00.07 and later, with Teradata Advanced SQL Engine 17.10 and later, or Teradata Advanced SQL Engine 16.20.53.30 and later.
集計やGROUP BY を含まないクエリで返される最大行数を指定します。
int
-1
このプロパティのデフォルト値である-1 は、クエリに明示的にLIMIT 句が含まれていない限り、行の制限が適用されないことを意味します。 （クエリにLIMIT 句が含まれている場合、クエリで指定された値がMaxRows 設定よりも優先されます。）
MaxRows を0より大きい整数に設定することで、クエリがデフォルトで過度に大きな結果セットを返さないようにします。
このプロパティは、非常に大きなデータセットを返す可能性のあるクエリを実行する際に、パフォーマンスを最適化し、過剰なリソース消費を防ぐのに役立ちます。
Specifies the file name of a PEM file that contains Certificate Authority (CA) certificates for use with SSLMODE=VERIFY-CA or VERIFY-FULL.
string
""
Specifies the file name of a PEM file that contains Certificate Authority (CA) certificates for use with SSLMODE=VERIFY-CA or VERIFY-FULL. HTTPS/TLS connections are available with Teradata JDBC Driver 17.10.00.07 and later, with Teradata Advanced SQL Engine 17.10 and later, or Teradata Advanced SQL Engine 16.20.53.30 and later.
Specifies a directory of PEM files that contain Certificate Authority (CA) certificates for use with SSLMODE=VERIFY-CA or VERIFY-FULL.
string
""
Specifies a directory of PEM files that contain Certificate Authority (CA) certificates for use with SSLMODE=VERIFY-CA or VERIFY-FULL. Only files with an extension of .pem are used. Other files in the specified directory are not used. HTTPS/TLS connections are available with Teradata JDBC Driver 17.10.00.07 and later, with Teradata Advanced SQL Engine 17.10 and later, or Teradata Advanced SQL Engine 16.20.53.30 and later.
Specifies the mode for connections to the database.
string
""
Specifies the mode for connections to the database. HTTPS/TLS connections are available with Teradata JDBC Driver 17.10.00.07 and later, with Teradata Advanced SQL Engine 17.10 and later, or Teradata Advanced SQL Engine 16.20.53.30 and later.
Specifies the TLS protocol for HTTPS/TLS connections.
string
""
Specifies the TLS protocol for HTTPS/TLS connections. HTTPS/TLS connections are available with Teradata JDBC Driver 17.10.00.07 and later, with Teradata Advanced SQL Engine 17.10 and later, or Teradata Advanced SQL Engine 16.20.53.30 and later.
更新された行がない場合に例外をスローするかどうかを指定します。
bool
false
更新された行がない場合に例外をスローするかどうかを指定します。
provider がタイムアウトエラーを返すまでにサーバーからの応答を待機する最大時間を秒単位で指定します。
int
60
タイムアウトは、クエリや操作全体ではなくサーバーとの個々の通信に適用されます。 例えば、各ページング呼び出しがタイムアウト制限内に完了する場合、クエリは60秒を超えて実行を続けることができます。
タイムアウトはデフォルトで60秒に設定されています。タイムアウトを無効にするには、このプロパティを0に設定します。
タイムアウトを無効にすると、操作が成功するか、サーバー側のタイムアウト、ネットワークの中断、またはサーバーのリソース制限などの他の条件で失敗するまで無期限に実行されます。
Note： このプロパティは慎重に使用してください。長時間実行される操作がパフォーマンスを低下させたり、応答しなくなる可能性があるためです。
This property reports all identifiers in uppercase. This is the default for Oracle databases and thus allows better integration with Oracle tools such as the Oracle Database Gateway.
bool
false
Set this property to report all identifiers, including table and column names, in uppercase. This is the default for Oracle databases and thus allows better integration with Oracle tools such as the Oracle Database Gateway. For example, you can use this property to avoid quoting identifiers.
Specifies which Data Dictionary views should be queried to return result sets from DatabaseMetaData methods.
string
""
Specifies which Data Dictionary views should be queried to return result sets from DatabaseMetaData methods. When the user does not specify the property, the driver creates the connection. The official driver uses the default value.
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