Azure Event Hubs Connector for CData Sync

Build 25.0.9335
  • Azure Event Hubs
    • Establishing a Connection
    • Advanced Features
      • SSL Configuration
      • Firewall and Proxy
    • Data Model
      • Tables
        • Output
    • Connection String Options
      • Authentication
        • Endpoint
        • EntityPath
        • SharedAccessKey
        • SharedAccessKeyName
        • ProduceMeta
        • SerializationFormat
      • SSL
        • SSLServerCert
      • Firewall
        • FirewallType
        • FirewallServer
        • FirewallPort
        • FirewallUser
        • FirewallPassword
      • Proxy
        • ProxyAutoDetect
        • ProxyServer
        • ProxyPort
        • ProxyAuthScheme
        • ProxyUser
        • ProxyPassword
        • ProxySSLType
        • ProxyExceptions
      • Logging
        • LogModules
      • Schema
        • Location
        • BrowsableSchemas
        • Tables
        • Views
      • Miscellaneous
        • MaxRows
        • Other
        • PseudoColumns
        • Timeout
        • UserDefinedViews
    • Third Party Copyrights

Azure Event Hubs Connector for CData Sync

Overview

The CData Sync App provides a straightforward way to continuously pipeline your Azure Event Hubs data to any database, data lake, or data warehouse, making it easily available for Analytics, Reporting, AI, and Machine Learning.

The Azure Event Hubs connector can be used from the CData Sync application to pull data from Azure Event Hubs and move it to any of the supported destinations.

Azure Event Hubs Version Support

The Sync App leverages the Azure Event Hubs API to enable bidirectional access to Azure Event Hubs.

Azure Event Hubs Connector for CData Sync

Establishing a Connection

Adding a Connection to Azure Event Hubs

To add a connection to Azure Event Hubs:

  1. In the application console, navigate to the Connections page.
  2. At the Add Connections panel, select the icon for the connection you want to add.
  3. If the Azure Event Hubs icon is not available, click the Add More icon to download and install the Azure Event Hubs connector from the CData site.

For required properties, see the Settings tab.

For connection properties that are not typically required, see the Advanced tab.

Connecting to AzureEventHubs

To connect to AzureEventHubs specify the Endpoint, SharedAccessKeyName and SharedAccessKey connection properties.

  • Endpoint - The endpoint of your Azure Event Hubs instance. This connection property is also known as Namespace.
  • SharedAccessKeyName - The name of your key (e.g. RootManageSharedAccessKey). This connection property is also known as KeyName.
  • SharedAccessKey - The actual key to authenticate to your account. This connection property is also known as Key.

You can also specify the EntityPath connection property to choose which entity path you want your messages to go to. If it is omitted, the driver will use the table's name for this function.

Azure Event Hubs Connector for CData Sync

Advanced Features

This section details a selection of advanced features of the Azure Event Hubs Sync App.

User Defined Views

The Sync App supports the use of user defined views, virtual tables whose contents are decided by a pre-configured user defined query. These views are useful when you cannot directly control queries being issued to the drivers. For an overview of creating and configuring custom views, see User Defined Views .

SSL Configuration

Use SSL Configuration to adjust how Sync App handles TLS/SSL certificate negotiations. You can choose from various certificate formats;. For further information, see the SSLServerCert property under "Connection String Options" .

Firewall and Proxy

Configure the Sync App for compliance with Firewall and Proxy, including Windows proxies and HTTP proxies. You can also set up tunnel connections.

Query Processing

The Sync App offloads as much of the SELECT statement processing as possible to Azure Event Hubs and then processes the rest of the query in memory (client-side).

For further information, see Query Processing.

Logging

For an overview of configuration settings that can be used to refine CData logging, see Logging. Only two connection properties are required for basic logging, but there are numerous features that support more refined logging, which enables you to use the LogModules connection property to specify subsets of information to be logged.

Azure Event Hubs Connector for CData Sync

SSL Configuration

Customizing the SSL Configuration

By default, the Sync App 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.

To specify another certificate, see the SSLServerCert connection property.

Azure Event Hubs Connector for CData Sync

Firewall and Proxy

Connecting Through a Firewall or Proxy

HTTP Proxies

To authenticate to an HTTP proxy, set the following:

  • ProxyServer: the hostname or IP address of the proxy server that you want to route HTTP traffic through.
  • ProxyPort: the TCP port that the proxy server is running on.
  • ProxyAuthScheme: the authentication method the Sync App uses when authenticating to the proxy server.
  • ProxyUser: the username of a user account registered with the proxy server.
  • ProxyPassword: the password associated with the ProxyUser.

Other Proxies

Set the following properties:

  • To use a proxy-based firewall, set FirewallType, FirewallServer, and FirewallPort.
  • To tunnel the connection, set FirewallType to TUNNEL.
  • To authenticate, specify FirewallUser and FirewallPassword.
  • To authenticate to a SOCKS proxy, additionally set FirewallType to SOCKS5.

Azure Event Hubs Connector for CData Sync

Data Model

The CData Sync App models Azure Event Hubs objects as relational tables and views. A Azure Event Hubs object has relationships to other objects; in the tables, these relationships are expressed through foreign keys. The following sections show the available API objects and provide more information on executing SQL to Azure Event Hubs APIs.

Schemas for most database objects are defined in simple, text-based configuration files.

Azure Event Hubs Connector for CData Sync

Tables

The Sync App models the data in Azure Event Hubs as a list of tables in a relational database that can be queried using standard SQL statements.

Azure Event Hubs Connector for CData Sync Tables

Name Description
Output The output table.

Azure Event Hubs Connector for CData Sync

Output

The output table.

Columns

Name Type ReadOnly Description
Message String False

The whole contents of the message, please specify additional columns in the SQLQuery.

Azure Event Hubs Connector for CData Sync

Connection String Options

The connection string properties are the various options that can be used to establish a connection. This section provides a complete list of the options you can configure in the connection string for this provider. Click the links for further details.

For more information on establishing a connection, see Establishing a Connection.

Authentication


PropertyDescription
EndpointThe endpoint of your Azure Event Hubs instance.
EntityPathThe entity path that you want your messages to go to. If this connection property is not specified the driver will use the table's name as the Entity Path.
SharedAccessKeyThe key to authenticate to your account.
SharedAccessKeyNameThe name of your key.
ProduceMetaSpecifies whether or not to send a meta message while producing the outgoing message. This option is only used if SerializationFormat is set to CSV.
SerializationFormatSpecifies how to serialize/deserialize the incoming or outgoing message.

SSL


PropertyDescription
SSLServerCertSpecifies the certificate to be accepted from the server when connecting using TLS/SSL.

Firewall


PropertyDescription
FirewallTypeSpecifies the protocol the provider uses to tunnel traffic through a proxy-based firewall.
FirewallServerIdentifies the IP address, DNS name, or host name of a proxy used to traverse a firewall and relay user queries to network resources.
FirewallPortSpecifies the TCP port to be used for a proxy-based firewall.
FirewallUserIdentifies the user ID of the account authenticating to a proxy-based firewall.
FirewallPasswordSpecifies the password of the user account authenticating to a proxy-based firewall.

Proxy


PropertyDescription
ProxyAutoDetectSpecifies whether the provider checks your system proxy settings for existing proxy server configurations, rather than using a manually specified proxy server.
ProxyServerIdentifies the hostname or IP address of the proxy server through which you want to route HTTP traffic.
ProxyPortIdentifies the TCP port on your specified proxy server that has been reserved for routing HTTP traffic to and from the client.
ProxyAuthSchemeSpecifies the authentication method the provider uses when authenticating to the proxy server specified in the ProxyServer connection property.
ProxyUserProvides the username of a user account registered with the proxy server specified in the ProxyServer connection property.
ProxyPasswordSpecifies the password of the user specified in the ProxyUser connection property.
ProxySSLTypeSpecifies the SSL type to use when connecting to the proxy server specified in the ProxyServer connection property.
ProxyExceptionsSpecifies a semicolon-separated list of destination hostnames or IPs that are exempt from connecting through the proxy server set in the ProxyServer connection property.

Logging


PropertyDescription
LogModulesSpecifies the core modules to include in the log file. Use a semicolon-separated list of module names. By default, all modules are logged.

Schema


PropertyDescription
LocationSpecifies the location of a directory containing schema files that define tables, views, and stored procedures. Depending on your service's requirements, this may be expressed as either an absolute path or a relative path.
BrowsableSchemasOptional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC .
TablesOptional setting that restricts the tables reported to a subset of all available tables. For example, Tables=TableA,TableB,TableC .
ViewsOptional setting that restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC .

Miscellaneous


PropertyDescription
MaxRowsSpecifies the maximum rows returned for queries without aggregation or GROUP BY.
OtherSpecifies additional hidden properties for specific use cases. These are not required for typical provider functionality. Use a semicolon-separated list to define multiple properties.
PseudoColumnsSpecifies the pseudocolumns to expose as table columns. Use the format 'TableName=ColumnName;TableName=ColumnName'. The default is an empty string, which disables this property.
TimeoutSpecifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. The default is 60 seconds. Set to 0 to disable the timeout.
UserDefinedViewsSpecifies a filepath to a JSON configuration file defining custom views. The provider automatically detects and uses the views specified in this file.
Azure Event Hubs Connector for CData Sync

Authentication

This section provides a complete list of the Authentication properties you can configure in the connection string for this provider.


PropertyDescription
EndpointThe endpoint of your Azure Event Hubs instance.
EntityPathThe entity path that you want your messages to go to. If this connection property is not specified the driver will use the table's name as the Entity Path.
SharedAccessKeyThe key to authenticate to your account.
SharedAccessKeyNameThe name of your key.
ProduceMetaSpecifies whether or not to send a meta message while producing the outgoing message. This option is only used if SerializationFormat is set to CSV.
SerializationFormatSpecifies how to serialize/deserialize the incoming or outgoing message.
Azure Event Hubs Connector for CData Sync

Endpoint

The endpoint of your Azure Event Hubs instance.

Remarks

The endpoint of your Azure Event Hubs instance

Azure Event Hubs Connector for CData Sync

EntityPath

The entity path that you want your messages to go to. If this connection property is not specified the driver will use the table's name as the Entity Path.

Remarks

This is your Event Hub's name.

Azure Event Hubs Connector for CData Sync

SharedAccessKey

The key to authenticate to your account.

Remarks

--

Azure Event Hubs Connector for CData Sync

SharedAccessKeyName

The name of your key.

Remarks

A common value for this connection property would be "RootManageSharedAccessKey"

Azure Event Hubs Connector for CData Sync

ProduceMeta

Specifies whether or not to send a meta message while producing the outgoing message. This option is only used if SerializationFormat is set to CSV.

Remarks

Specifies whether or not to send a meta message while producing the outgoing message. This option is only used if SerializationFormat is set to CSV.

Azure Event Hubs Connector for CData Sync

SerializationFormat

Specifies how to serialize/deserialize the incoming or outgoing message.

Remarks

Specifies how to serialize/deserialize the incoming or outgoing message.

JSON Message will be serialized using the JSON format.
CSV Message will be serialized using the CSV format.
XML Message will be serialized using the XML format.

Azure Event Hubs Connector for CData Sync

SSL

This section provides a complete list of the SSL properties you can configure in the connection string for this provider.


PropertyDescription
SSLServerCertSpecifies the certificate to be accepted from the server when connecting using TLS/SSL.
Azure Event Hubs Connector for CData Sync

SSLServerCert

Specifies the certificate to be accepted from the server when connecting using TLS/SSL.

Remarks

If using a TLS/SSL connection, this property can be used to specify the TLS/SSL certificate to be accepted from the server. Any other certificate that is not trusted by the machine is rejected.

This property can take the following forms:

Description Example
A full PEM Certificate (example shortened for brevity) -----BEGIN CERTIFICATE----- MIIChTCCAe4CAQAwDQYJKoZIhv......Qw== -----END CERTIFICATE-----
A path to a local file containing the certificate C:\cert.cer
The public key (example shortened for brevity) -----BEGIN RSA PUBLIC KEY----- MIGfMA0GCSq......AQAB -----END RSA PUBLIC KEY-----
The MD5 Thumbprint (hex values can also be either space or colon separated) ecadbdda5a1529c58a1e9e09828d70e4
The SHA1 Thumbprint (hex values can also be either space or colon separated) 34a929226ae0819f2ec14b4a3d904f801cbb150d

If not specified, any certificate trusted by the machine is accepted.

Use '*' to signify to accept all certificates. Note that this is not recommended due to security concerns.

Azure Event Hubs Connector for CData Sync

Firewall

This section provides a complete list of the Firewall properties you can configure in the connection string for this provider.


PropertyDescription
FirewallTypeSpecifies the protocol the provider uses to tunnel traffic through a proxy-based firewall.
FirewallServerIdentifies the IP address, DNS name, or host name of a proxy used to traverse a firewall and relay user queries to network resources.
FirewallPortSpecifies the TCP port to be used for a proxy-based firewall.
FirewallUserIdentifies the user ID of the account authenticating to a proxy-based firewall.
FirewallPasswordSpecifies the password of the user account authenticating to a proxy-based firewall.
Azure Event Hubs Connector for CData Sync

FirewallType

Specifies the protocol the provider uses to tunnel traffic through a proxy-based firewall.

Remarks

A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.

Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.

Note: By default, the Sync App connects to the system proxy. To disable this behavior and connect to one of the following proxy types, set ProxyAutoDetect to false.

The following table provides port number information for each of the supported protocols.

Protocol Default Port Description
TUNNEL 80 The port where the Sync App opens a connection to Azure Event Hubs. Traffic flows back and forth via the proxy at this location.
SOCKS4 1080 The port where the Sync App opens a connection to Azure Event Hubs. SOCKS 4 then passes theFirewallUser value to the proxy, which determines whether the connection request should be granted.
SOCKS5 1080 The port where the Sync App sends data to Azure Event Hubs. If the SOCKS 5 proxy requires authentication, set FirewallUser and FirewallPassword to credentials the proxy recognizes.

To connect to HTTP proxies, use ProxyServer and ProxyPort. To authenticate to HTTP proxies, use ProxyAuthScheme, ProxyUser, and ProxyPassword.

Azure Event Hubs Connector for CData Sync

FirewallServer

Identifies the IP address, DNS name, or host name of a proxy used to traverse a firewall and relay user queries to network resources.

Remarks

A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.

Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.

Azure Event Hubs Connector for CData Sync

FirewallPort

Specifies the TCP port to be used for a proxy-based firewall.

Remarks

A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.

Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.

Azure Event Hubs Connector for CData Sync

FirewallUser

Identifies the user ID of the account authenticating to a proxy-based firewall.

Remarks

A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.

Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.

Azure Event Hubs Connector for CData Sync

FirewallPassword

Specifies the password of the user account authenticating to a proxy-based firewall.

Remarks

A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.

Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.

Azure Event Hubs Connector for CData Sync

Proxy

This section provides a complete list of the Proxy properties you can configure in the connection string for this provider.


PropertyDescription
ProxyAutoDetectSpecifies whether the provider checks your system proxy settings for existing proxy server configurations, rather than using a manually specified proxy server.
ProxyServerIdentifies the hostname or IP address of the proxy server through which you want to route HTTP traffic.
ProxyPortIdentifies the TCP port on your specified proxy server that has been reserved for routing HTTP traffic to and from the client.
ProxyAuthSchemeSpecifies the authentication method the provider uses when authenticating to the proxy server specified in the ProxyServer connection property.
ProxyUserProvides the username of a user account registered with the proxy server specified in the ProxyServer connection property.
ProxyPasswordSpecifies the password of the user specified in the ProxyUser connection property.
ProxySSLTypeSpecifies the SSL type to use when connecting to the proxy server specified in the ProxyServer connection property.
ProxyExceptionsSpecifies a semicolon-separated list of destination hostnames or IPs that are exempt from connecting through the proxy server set in the ProxyServer connection property.
Azure Event Hubs Connector for CData Sync

ProxyAutoDetect

Specifies whether the provider checks your system proxy settings for existing proxy server configurations, rather than using a manually specified proxy server.

Remarks

When this connection property is set to True, the Sync App checks your system proxy settings for existing proxy server configurations (no need to manually supply proxy server details).

This connection property takes precedence over other proxy settings. If you want to configure the Sync App to connect to a specific proxy server, set ProxyAutoDetect to False.

To connect to an HTTP proxy, see ProxyServer. For other proxies, such as SOCKS or tunneling, see FirewallType.

Azure Event Hubs Connector for CData Sync

ProxyServer

Identifies the hostname or IP address of the proxy server through which you want to route HTTP traffic.

Remarks

The Sync App only routes HTTP traffic through the proxy server specified in this connection property when ProxyAutoDetect is set to False.

If ProxyAutoDetect is set to True(the default), the Sync App instead routes HTTP traffic through the proxy server specified in your system proxy settings.

Azure Event Hubs Connector for CData Sync

ProxyPort

Identifies the TCP port on your specified proxy server that has been reserved for routing HTTP traffic to and from the client.

Remarks

The Sync App only routes HTTP traffic through the ProxyServer port specified in this connection property when ProxyAutoDetect is set to False.

If ProxyAutoDetect is set to True (the default), the Sync App instead routes HTTP traffic through the proxy server port specified in your system proxy settings.

For other proxy types, see FirewallType.

Azure Event Hubs Connector for CData Sync

ProxyAuthScheme

Specifies the authentication method the provider uses when authenticating to the proxy server specified in the ProxyServer connection property.

Remarks

The authentication type can be one of the following:

  • BASIC: The Sync App performs HTTP BASIC authentication.
  • DIGEST: The Sync App performs HTTP DIGEST authentication.
  • NTLM: The Sync App retrieves an NTLM token.
  • NEGOTIATE: The Sync App retrieves an NTLM or Kerberos token based on the applicable protocol for authentication.
  • NONE: Set this when the ProxyServer does not require authentication.

For all values other than "NONE", you must also set the ProxyUser and ProxyPassword connection properties.

If you need to use another authentication type, such as SOCKS 5 authentication, see FirewallType.

Azure Event Hubs Connector for CData Sync

ProxyUser

Provides the username of a user account registered with the proxy server specified in the ProxyServer connection property.

Remarks

The ProxyUser and ProxyPassword connection properties are used to connect and authenticate against the HTTP proxy specified in ProxyServer.

After selecting one of the available authentication types in ProxyAuthScheme, set this property as follows:

ProxyAuthScheme Value Value to set for ProxyUser
BASIC The username of a user registered with the proxy server.
DIGEST The username of a user registered with the proxy server.
NEGOTIATE The username of a Windows user who is a valid user in the domain or trusted domain that the proxy server is part of, in the format user@domain or domain\user.
NTLM The username of a Windows user who is a valid user in the domain or trusted domain that the proxy server is part of, in the format user@domain or domain\user.
NONE Do not set the ProxyPassword connection property.

The Sync App only uses this username if ProxyAutoDetect is set to False. If ProxyAutoDetect is set to True (the default), the Sync App instead uses the username specified in your system proxy settings.

Azure Event Hubs Connector for CData Sync

ProxyPassword

Specifies the password of the user specified in the ProxyUser connection property.

Remarks

The ProxyUser and ProxyPassword connection properties are used to connect and authenticate against the HTTP proxy specified in ProxyServer.

After selecting one of the available authentication types in ProxyAuthScheme, set this property as follows:

ProxyAuthScheme Value Value to set for ProxyPassword
BASIC The password associated with the proxy server user specified in ProxyUser.
DIGEST The password associated with the proxy server user specified in ProxyUser.
NEGOTIATE The password associated with the Windows user account specified in ProxyUser.
NTLM The password associated with the Windows user account specified in ProxyUser.
NONE Do not set the ProxyPassword connection property.

For SOCKS 5 authentication or tunneling, see FirewallType.

The Sync App only uses this password if ProxyAutoDetect is set to False. If ProxyAutoDetect is set to True (the default), the Sync App instead uses the password specified in your system proxy settings.

Azure Event Hubs Connector for CData Sync

ProxySSLType

Specifies the SSL type to use when connecting to the proxy server specified in the ProxyServer connection property.

Remarks

This property determines when to use SSL for the connection to the HTTP proxy specified by ProxyServer. You can set this connection property to the following values :

AUTODefault setting. If ProxyServer is set to an HTTPS URL, the Sync App uses the TUNNEL option. If ProxyServer is set to an HTTP URL, the component uses the NEVER option.
ALWAYSThe connection is always SSL enabled.
NEVERThe connection is not SSL enabled.
TUNNELThe connection is made through a tunneling proxy. The proxy server opens a connection to the remote host and traffic flows back and forth through the proxy.

Azure Event Hubs Connector for CData Sync

ProxyExceptions

Specifies a semicolon-separated list of destination hostnames or IPs that are exempt from connecting through the proxy server set in the ProxyServer connection property.

Remarks

The ProxyServer is used for all addresses, except for addresses defined in this property. Use semicolons to separate entries.

Note: The Sync App uses the system proxy settings by default, without further configuration needed. If you want to explicitly configure proxy exceptions for this connection, set ProxyAutoDetect to False.

Azure Event Hubs Connector for CData Sync

Logging

This section provides a complete list of the Logging properties you can configure in the connection string for this provider.


PropertyDescription
LogModulesSpecifies the core modules to include in the log file. Use a semicolon-separated list of module names. By default, all modules are logged.
Azure Event Hubs Connector for CData Sync

LogModules

Specifies the core modules to include in the log file. Use a semicolon-separated list of module names. By default, all modules are logged.

Remarks

This property lets you customize the log file content by specifying the logging modules to include. Logging modules categorize logged information into distinct areas, such as query execution, metadata, or SSL communication. Each module is represented by a four-character code, with some requiring a trailing space for three-letter names.

For example, EXEC logs query execution, and INFO logs general provider messages. To include multiple modules, separate their names with semicolons as follows: INFO;EXEC;SSL.

The Verbosity connection property takes precedence over the module-based filtering specified by this property. Only log entries that meet the verbosity level and belong to the specified modules are logged. Leave this property blank to include all available modules in the log file.

For a complete list of available modules and detailed guidance on configuring logging, refer to the Advanced Logging section in Logging.

Azure Event Hubs Connector for CData Sync

Schema

This section provides a complete list of the Schema properties you can configure in the connection string for this provider.


PropertyDescription
LocationSpecifies the location of a directory containing schema files that define tables, views, and stored procedures. Depending on your service's requirements, this may be expressed as either an absolute path or a relative path.
BrowsableSchemasOptional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC .
TablesOptional setting that restricts the tables reported to a subset of all available tables. For example, Tables=TableA,TableB,TableC .
ViewsOptional setting that restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC .
Azure Event Hubs Connector for CData Sync

Location

Specifies the location of a directory containing schema files that define tables, views, and stored procedures. Depending on your service's requirements, this may be expressed as either an absolute path or a relative path.

Remarks

The Location property is only needed if you want to either customize definitions (for example, change a column name, ignore a column, etc.) or extend the data model with new tables, views, or stored procedures.

If left unspecified, the default location is %APPDATA%\\CData\\AzureEventHubs Data Provider\\Schema, where %APPDATA% is set to the user's configuration directory:

Platform %APPDATA%
Windows The value of the APPDATA environment variable
Linux ~/.config

Azure Event Hubs Connector for CData Sync

BrowsableSchemas

Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC .

Remarks

Listing all available database schemas can take extra time, thus degrading performance. Providing a list of schemas in the connection string saves time and improves performance.

Azure Event Hubs Connector for CData Sync

Tables

Optional setting that restricts the tables reported to a subset of all available tables. For example, Tables=TableA,TableB,TableC .

Remarks

Listing all available tables from some databases can take extra time, thus degrading performance. Providing a list of tables in the connection string saves time and improves performance.

If there are lots of tables available and you already know which ones you want to work with, you can use this property to restrict your viewing to only those tables. To do this, specify the tables you want in a comma-separated list. Each table should be a valid SQL identifier with any special characters escaped using square brackets, double-quotes or backticks. For example, Tables=TableA,[TableB/WithSlash],WithCatalog.WithSchema.`TableC With Space`.

Note: If you are connecting to a data source with multiple schemas or catalogs, you must specify each table you want to view by its fully qualified name. This avoids ambiguity between tables that may exist in multiple catalogs or schemas.

Azure Event Hubs Connector for CData Sync

Views

Optional setting that restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC .

Remarks

Listing all available views from some databases can take extra time, thus degrading performance. Providing a list of views in the connection string saves time and improves performance.

If there are lots of views available and you already know which ones you want to work with, you can use this property to restrict your viewing to only those views. To do this, specify the views you want in a comma-separated list. Each view should be a valid SQL identifier with any special characters escaped using square brackets, double-quotes or backticks. For example, Views=ViewA,[ViewB/WithSlash],WithCatalog.WithSchema.`ViewC With Space`.

Note: If you are connecting to a data source with multiple schemas or catalogs, you must specify each view you want to examine by its fully qualified name. This avoids ambiguity between views that may exist in multiple catalogs or schemas.

Azure Event Hubs Connector for CData Sync

Miscellaneous

This section provides a complete list of the Miscellaneous properties you can configure in the connection string for this provider.


PropertyDescription
MaxRowsSpecifies the maximum rows returned for queries without aggregation or GROUP BY.
OtherSpecifies additional hidden properties for specific use cases. These are not required for typical provider functionality. Use a semicolon-separated list to define multiple properties.
PseudoColumnsSpecifies the pseudocolumns to expose as table columns. Use the format 'TableName=ColumnName;TableName=ColumnName'. The default is an empty string, which disables this property.
TimeoutSpecifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. The default is 60 seconds. Set to 0 to disable the timeout.
UserDefinedViewsSpecifies a filepath to a JSON configuration file defining custom views. The provider automatically detects and uses the views specified in this file.
Azure Event Hubs Connector for CData Sync

MaxRows

Specifies the maximum rows returned for queries without aggregation or GROUP BY.

Remarks

This property sets an upper limit on the number of rows the Sync App returns for queries that do not include aggregation or GROUP BY clauses. This limit ensures that queries do not return excessively large result sets by default.

When a query includes a LIMIT clause, the value specified in the query takes precedence over the MaxRows setting. If MaxRows is set to "-1", no row limit is enforced unless a LIMIT clause is explicitly included in the query.

This property is useful for optimizing performance and preventing excessive resource consumption when executing queries that could otherwise return very large datasets.

Azure Event Hubs Connector for CData Sync

Other

Specifies additional hidden properties for specific use cases. These are not required for typical provider functionality. Use a semicolon-separated list to define multiple properties.

Remarks

This property allows advanced users to configure hidden properties for specialized scenarios. These settings are not required for normal use cases but can address unique requirements or provide additional functionality. Multiple properties can be defined in a semicolon-separated list.

Note: It is strongly recommended to set these properties only when advised by the support team to address specific scenarios or issues.

Specify multiple properties in a semicolon-separated list.

Integration and Formatting

DefaultColumnSizeSets the default length of string fields when the data source does not provide column length in the metadata. The default value is 2000.
ConvertDateTimeToGMT=TrueConverts date-time values to GMT, instead of the local time of the machine. The default value is False (use local time).
RecordToFile=filenameRecords the underlying socket data transfer to the specified file.

Azure Event Hubs Connector for CData Sync

PseudoColumns

Specifies the pseudocolumns to expose as table columns. Use the format 'TableName=ColumnName;TableName=ColumnName'. The default is an empty string, which disables this property.

Remarks

This property allows you to define which pseudocolumns the Sync App exposes as table columns.

To specify individual pseudocolumns, use the following format: "Table1=Column1;Table1=Column2;Table2=Column3"

To include all pseudocolumns for all tables use: "*=*"

Azure Event Hubs Connector for CData Sync

Timeout

Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. The default is 60 seconds. Set to 0 to disable the timeout.

Remarks

This property controls the maximum time, in seconds, that the Sync App waits for an operation to complete before canceling it. If the timeout period expires before the operation finishes, the Sync App cancels the operation and throws an exception.

The timeout applies to each individual communication with the server rather than the entire query or operation. For example, a query could continue running beyond 60 seconds if each paging call completes within the timeout limit.

Setting this property to 0 disables the timeout, allowing operations to run indefinitely until they succeed or fail due to other conditions such as server-side timeouts, network interruptions, or resource limits on the server. Use this property cautiously to avoid long-running operations that could degrade performance or result in unresponsive behavior.

Azure Event Hubs Connector for CData Sync

UserDefinedViews

Specifies a filepath to a JSON configuration file defining custom views. The provider automatically detects and uses the views specified in this file.

Remarks

This property allows you to define and manage custom views through a JSON-formatted configuration file called UserDefinedViews.json. These views are automatically recognized by the Sync App and enable you to execute custom SQL queries as if they were standard database views. The JSON file defines each view as a root element with a child element called "query", which contains the SQL query for the view. For example:


{
	"MyView": {
		"query": "SELECT * FROM SampleTable_1 WHERE MyColumn = 'value'"
	},
	"MyView2": {
		"query": "SELECT * FROM MyTable WHERE Id IN (1,2,3)"
	}
}

You can define multiple views in a single file and specify the filepath using this property. For example: UserDefinedViews=C:\Path\To\UserDefinedViews.json. When you use this property, only the specified views are seen by the Sync App.

Refer to User Defined Views for more information.

Azure Event Hubs Connector for CData Sync

Third Party Copyrights

LZMA from 7Zip LZMA SDK

LZMA SDK is placed in the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or distribute the original LZMA SDK code, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.

LZMA2 from XZ SDK

Version 1.9 and older are in the public domain.

Xamarin.Forms

Xamarin SDK

The MIT License (MIT)

Copyright (c) .NET Foundation Contributors

All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

NSIS 3.10

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