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SybaseIQ 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SybaseIQ 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、SybaseIQ 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SybaseIQ 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SybaseIQ 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SybaseIQ 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、SybaseIQ 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。
SybaseIQ に接続するには、次の接続プロパティを指定します。
オプションで、UseSSL をtrue に設定することにより、TLS/SSL で接続を保護できます。
Note： 上記のCloud 設定でSAP SQL Anywhere のインスタンスに接続することもできます。
SybaseIQ は、Basic 認証、Kerberos 認証、LDAP 認証などの認証方法をいくつかサポートしています。
Set the AuthScheme to Basic and set the following connection properties to use SybaseIQ authentication.
LDAP 認証で接続するには、LDAP 認証メカニズムを使用するようにSybaseIQサーバーサイドを設定する必要があります。
LDAP 用にSybaseIQ を設定したら、Basic 認証と同じクレデンシャルを使用して接続できます。
Kerberos 認証を活用するには、次の接続プロパティを使用してそれを有効にすることから始めます。
以下は接続文字列の例です。
Server=MyServer;Port=MyPort;User=SampleUser;Password=SamplePassword;Database=MyDB;Kerberos=true;KerberosKDC=MyKDC;KerberosRealm=MYREALM.COM;KerberosSPN=server-name
To enable TLS, set the following:
With this configuration, the Cloud attempts to negotiate TLS with the server. The server certificate is validated against the default system trusted certificate store. You can override how the certificate gets validated using the SSLServerCert connection property.
別の証明書を指定するには、SSLServerCert 接続プロパティを参照してください。
次のプロパティを設定します。
| プロパティ | 説明 |
| AuthScheme | The scheme used for authentication. Accepted entries are Password, Kerberos. |
| Server | The name of the server running the SybaseIQ or SAP SQL Anywhere Database. |
| Port | The port of the SybaseIQ database. |
| Database | The name of the SybaseIQ or SAP SQL Anywhere database. |
| 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。 |
| UseSSL | This field sets whether SSL is enabled. For the Sybase IQ, it is available only when the server version is 16.1 or higher. |
| Charset | Charset name to communicate with server. |
| ConnectionType | This option specifies whether to connect to a SybaseIQ server or a SQLAnywhere server. |
| プロパティ | 説明 |
| SSLServerCert | TLS/SSL を使用して接続する際に、サーバーが受け入れ可能な証明書を指定します。 |
| 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。 |
| 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 |
| IncludeSystemObjects | Whether to include system objects while retrieving metadata. |
| 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。 |
| MaxTDSPacketSize | The protocol sending and receiving buffer size. For the lower version, it's from 512 to 512. For the newer version, it's from 512 to 2048. |
| Timeout | A timeout for the provider. |
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 |
| AuthScheme | The scheme used for authentication. Accepted entries are Password, Kerberos. |
| Server | The name of the server running the SybaseIQ or SAP SQL Anywhere Database. |
| Port | The port of the SybaseIQ database. |
| Database | The name of the SybaseIQ or SAP SQL Anywhere database. |
| 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。 |
| UseSSL | This field sets whether SSL is enabled. For the Sybase IQ, it is available only when the server version is 16.1 or higher. |
| Charset | Charset name to communicate with server. |
| ConnectionType | This option specifies whether to connect to a SybaseIQ server or a SQLAnywhere server. |
The scheme used for authentication. Accepted entries are Password, Kerberos.
string
"Password"
Together with Password and User, this field is used to authenticate against the server. Password is the default option. Use the following options to select your authentication scheme:
The name of the server running the SybaseIQ or SAP SQL Anywhere Database.
string
""
Set this property to the name or network address of the SybaseIQ or SAP SQL Anywhere database instance.
The name of the SybaseIQ or SAP SQL Anywhere database.
string
""
The name of the SybaseIQ or SAP SQL Anywhere database running on the specified Server.
This field sets whether SSL is enabled. For the Sybase IQ, it is available only when the server version is 16.1 or higher.
bool
false
This field sets whether the Cloud will attempt to negotiate TLS/SSL connections to the server. By default, the Cloud checks the server's certificate against the system's trusted certificate store. To specify another certificate, set SSLServerCert.
Charset name to communicate with server.
string
"cp1252"
Charset name to communicate with server.
This option specifies whether to connect to a SybaseIQ server or a SQLAnywhere server.
string
"SybaseIQ"
This option specifies whether to connect to a SybaseIQ server or a SQLAnywhere server.
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SSL プロパティの全リストを提供します。
| プロパティ | 説明 |
| SSLServerCert | TLS/SSL を使用して接続する際に、サーバーが受け入れ可能な証明書を指定します。 |
TLS/SSL を使用して接続する際に、サーバーが受け入れ可能な証明書を指定します。
string
""
TLS/SSL 接続を使用している場合は、このプロパティを使用して、サーバーが受け入れるTLS/SSL 証明書を指定できます。このプロパティに値を指定すると、マシンによって信頼されていない他の証明書はすべて拒否されます。
このプロパティは、次のフォームを取ります：
| 説明 | 例 |
| フルPEM 証明書（例では省略されています） | -----BEGIN CERTIFICATE----- MIIChTCCAe4CAQAwDQYJKoZIhv......Qw== -----END CERTIFICATE----- |
| 証明書を保有するローカルファイルへのパス。 | C:\cert.cer |
| 公開鍵（例では省略されています） | -----BEGIN RSA PUBLIC KEY----- MIGfMA0GCSq......AQAB -----END RSA PUBLIC KEY----- |
| MD5 Thumbprint（hex 値はスペースまたはコロン区切り） | ecadbdda5a1529c58a1e9e09828d70e4 |
| SHA1 Thumbprint（hex 値はスペースまたはコロン区切り） | 34a929226ae0819f2ec14b4a3d904f801cbb150d |
Note：'*' を使用してすべての証明書を受け入れるように指定することも可能ですが、セキュリティ上の懸念があるため推奨されません。
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 |
| IncludeSystemObjects | Whether to include system objects while retrieving metadata. |
| 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。 |
| MaxTDSPacketSize | The protocol sending and receiving buffer size. For the lower version, it's from 512 to 512. For the newer version, it's from 512 to 2048. |
| Timeout | A timeout for the provider. |
Whether to include system objects while retrieving metadata.
bool
false
Whether to include system objects while retrieving metadata.
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。
The protocol sending and receiving buffer size. For the lower version, it's from 512 to 512. For the newer version, it's from 512 to 2048.
string
"512"
MaxTDSPacketSize allows you to control the protocol sending and receiving buffer size.
A timeout for the provider.
int
30
If the Timeout property is set to 0, operations will not time out; instead, they will run until they complete successfully or encounter an error condition.
If Timeout expires and the operation is not yet complete, the Cloud raises an error condition.
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