Matillion ETL Data Model for Open Exchange Rates
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string
""
The App ID you obtain when you register an account with Open Exchange Rates. The value will be displayed in your Open Exchange Rates dashboard.
string
""
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.
Certificates are validated as trusted by the machine based on the System's trust store. The trust store used is the 'javax.net.ssl.trustStore' value specified for the system. If no value is specified for this property, Java's default trust store is used (for example, JAVA_HOME\lib\security\cacerts).
Use '*' to signify to accept all certificates. Note that this is not recommended due to security concerns.
string
"NONE"
This property specifies the protocol that the driver will use to tunnel traffic through the FirewallServer proxy. Note that by default, the driver connects to the system proxy; to disable this behavior and connect to one of the following proxy types, set ProxyAutoDetect to false.
Type | Default Port | Description |
TUNNEL | 80 | When this is set, the driver opens a connection to Open Exchange Rates and traffic flows back and forth through the proxy. |
SOCKS4 | 1080 | When this is set, the driver sends data through the SOCKS 4 proxy specified by FirewallServer and FirewallPort and passes the FirewallUser value to the proxy, which determines if the connection request should be granted. |
SOCKS5 | 1080 | When this is set, the driver sends data through the SOCKS 5 proxy specified by FirewallServer and FirewallPort. If your 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.
string
""
This property specifies the IP address, DNS name, or host name of a proxy allowing traversal of a firewall. The protocol is specified by FirewallType: Use FirewallServer with this property to connect through SOCKS or do tunneling. Use ProxyServer to connect to an HTTP proxy.
Note that the driver uses the system proxy by default. To use a different proxy, set ProxyAutoDetect to false.
int
0
This specifies the TCP port for a proxy allowing traversal of a firewall. Use FirewallServer to specify the name or IP address. Specify the protocol with FirewallType.
string
""
The FirewallUser and FirewallPassword properties are used to authenticate against the proxy specified in FirewallServer and FirewallPort, following the authentication method specified in FirewallType.
string
""
This property is passed to the proxy specified by FirewallServer and FirewallPort, following the authentication method specified by FirewallType.
bool
false
This takes precedence over other proxy settings, so you'll need to set ProxyAutoDetect to FALSE in order use custom proxy settings.
NOTE: When this property is set to True, the proxy used is determined as follows:
To connect to an HTTP proxy, see ProxyServer. For other proxies, such as SOCKS or tunneling, see FirewallType.
string
""
The hostname or IP address of a proxy to route HTTP traffic through. The driver can use the HTTP, Windows (NTLM), or Kerberos authentication types to authenticate to an HTTP proxy.
If you need to connect through a SOCKS proxy or tunnel the connection, see FirewallType.
By default, the driver uses the system proxy. If you need to use another proxy, set ProxyAutoDetect to false.
int
80
The port the HTTP proxy is running on that you want to redirect HTTP traffic through. Specify the HTTP proxy in ProxyServer. For other proxy types, see FirewallType.
string
"BASIC"
This value specifies the authentication type to use to authenticate to the HTTP proxy specified by ProxyServer and ProxyPort.
Note that the driver will use the system proxy settings by default, without further configuration needed; if you want to connect to another proxy, you will need to set ProxyAutoDetect to false, in addition to ProxyServer and ProxyPort. To authenticate, set ProxyAuthScheme and set ProxyUser and ProxyPassword, if needed.
The authentication type can be one of the following:
If you need to use another authentication type, such as SOCKS 5 authentication, see FirewallType.
string
""
The ProxyUser and ProxyPassword options are used to connect and authenticate against the HTTP proxy specified in ProxyServer.
You can select one of the available authentication types in ProxyAuthScheme. If you are using HTTP authentication, set this to the user name of a user recognized by the HTTP proxy. If you are using Windows or Kerberos authentication, set this property to a user name in one of the following formats:
user@domain domain\user
string
""
This property is used to authenticate to an HTTP proxy server that supports NTLM (Windows), Kerberos, or HTTP authentication. To specify the HTTP proxy, you can set ProxyServer and ProxyPort. To specify the authentication type, set ProxyAuthScheme.
If you are using HTTP authentication, additionally set ProxyUser and ProxyPassword to HTTP proxy.
If you are using NTLM authentication, set ProxyUser and ProxyPassword to your Windows password. You may also need these to complete Kerberos authentication.
For SOCKS 5 authentication or tunneling, see FirewallType.
By default, the driver uses the system proxy. If you want to connect to another proxy, set ProxyAutoDetect to false.
string
"AUTO"
This property determines when to use SSL for the connection to an HTTP proxy specified by ProxyServer. This value can be AUTO, ALWAYS, NEVER, or TUNNEL. The applicable values are the following:
AUTO | Default setting. If the URL is an HTTPS URL, the driver will use the TUNNEL option. If the URL is an HTTP URL, the component will use the NEVER option. |
ALWAYS | The connection is always SSL enabled. |
NEVER | The connection is not SSL enabled. |
TUNNEL | The connection is through a tunneling proxy. The proxy server opens a connection to the remote host and traffic flows back and forth through the proxy. |
string
""
The ProxyServer is used for all addresses, except for addresses defined in this property. Use semicolons to separate entries.
Note that the driver uses the system proxy settings by default, without further configuration needed; if you want to explicitly configure proxy exceptions for this connection, you need to set ProxyAutoDetect = false, and configure ProxyServer and ProxyPort. To authenticate, set ProxyAuthScheme and set ProxyUser and ProxyPassword, if needed.
string
""
Once this property is set, the driver will populate the log file as it carries out various tasks, such as when authentication is performed or queries are executed. If the specified file doesn't already exist, it will be created.
Connection strings and version information are also logged, though connection properties containing sensitive information are masked automatically.
If a relative filepath is supplied, the location of the log file will be resolved based on the path found in the Location connection property.
For more control over what is written to the log file, you can adjust the Verbosity property.
Log contents are categorized into several modules. You can show/hide individual modules using the LogModules property.
To edit the maximum size of a single logfile before a new one is created, see MaxLogFileSize.
If you would like to place a cap on the number of logfiles generated, use MaxLogFileCount.
Java logging is also supported. To enable Java logging, set Logfile to:
Logfile=JAVALOG://myloggername
As in the above sample, JAVALOG:// is a required prefix to use Java logging, and you will substitute your own Logger.
The supplied Logger's getLogger method is then called, using the supplied value to create the Logger instance. If a logging instance already exists, it will reference the existing instance.
When Java logging is enabled, the Verbosity will now correspond to specific logging levels.
string
"1"
The verbosity level determines the amount of detail that the driver reports to the Logfile. Verbosity levels from 1 to 5 are supported. These are detailed in the Logging page.
string
""
Only the modules specified (separated by ';') will be included in the log file. By default all modules are included.
See the Logging page for an overview.
string
"100MB"
When the limit is hit, a new log is created in the same folder with the date and time appended to the end. The default limit is 100 MB. Values lower than 100 kB will use 100 kB as the value instead.
Adjust the maximum number of logfiles generated with MaxLogFileCount.
int
-1
When the limit is hit, a new log is created in the same folder with the date and time appended to the end and the oldest log file will be deleted.
The minimum supported value is 2. A value of 0 or a negative value indicates no limit on the count.
Adjust the maximum size of the logfiles generated with MaxLogFileSize.
string
"%APPDATA%\\CData\\OpenExchangeRates Data Provider\\Schema"
The path to a directory which contains the schema files for the driver (.rsd files for tables and views, .rsb files for stored procedures). The folder location can be a relative path from the location of the executable. The Location property is only needed if you want to customize definitions (for example, change a column name, ignore a column, and so on) or extend the data model with new tables, views, or stored procedures.
If left unspecified, the default location is "%APPDATA%\\CData\\OpenExchangeRates Data Provider\\Schema" with %APPDATA% being set to the user's configuration directory:
Platform | %APPDATA% |
Windows | The value of the APPDATA environment variable |
Mac | ~/Library/Application Support |
Linux | ~/.config |
string
""
Listing the schemas from databases can be expensive. Providing a list of schemas in the connection string improves the performance.
string
""
Listing the tables from some databases can be expensive. Providing a list of tables in the connection string improves the performance of the driver.
This property can also be used as an alternative to automatically listing views if you already know which ones you want to work with and there would otherwise be too many to work with.
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 that when connecting to a data source with multiple schemas or catalogs, you will need to provide the fully qualified name of the table in this property, as in the last example here, to avoid ambiguity between tables that exist in multiple catalogs or schemas.
string
""
Listing the views from some databases can be expensive. Providing a list of views in the connection string improves the performance of the driver.
This property can also be used as an alternative to automatically listing views if you already know which ones you want to work with and there would otherwise be too many to work with.
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 that when connecting to a data source with multiple schemas or catalogs, you will need to provide the fully qualified name of the table in this property, as in the last example here, to avoid ambiguity between tables that exist in multiple catalogs or schemas.
bool
false
When AutoCache = true, the driver automatically maintains a cache of your table's data in the database of your choice.
When AutoCache = true, the driver caches to a simple, file-based cache. You can configure its location or cache to a different database with the following properties:
string
""
You can cache to any database for which you have a JDBC driver, including CData JDBC drivers.
The cache database is determined based on the CacheDriver and CacheConnection properties. The CacheDriver is the name of the JDBC driver class that you want to use to cache data.
Note that you must also add the CacheDriver JAR file to the classpath.
The following examples show how to cache to several major databases. Refer to CacheConnection for more information on the JDBC URL syntax and typical connection properties.
The driver simplifies Derby configuration. Java DB is the Oracle distribution of Derby. The JAR file is shipped in the JDK. You can find the JAR file, derby.jar, in the db subfolder of the JDK installation. In most caching scenarios, you need to specify only the following, after adding derby.jar to the classpath:
jdbc:openexchangerates:CacheLocation='c:/Temp/cachedir';AppId=abc1234;To customize the Derby JDBC URL, use CacheDriver and CacheConnection. For example, to cache to an in-memory database, use a JDBC URL like the following:
jdbc:openexchangerates:CacheDriver=org.apache.derby.jdbc.EmbeddedDriver;CacheConnection='jdbc:derby:memory';AppId=abc1234;
The following is a JDBC URL for the SQLite JDBC driver:
jdbc:openexchangerates:CacheDriver=org.sqlite.JDBC;CacheConnection='jdbc:sqlite:C:/Temp/sqlite.db';AppId=abc1234;
The following is a JDBC URL for the included CData JDBC Driver for MySQL:
jdbc:openexchangerates:Cache Driver=cdata.jdbc.mysql.MySQLDriver;Cache Connection='jdbc:mysql:Server=localhost;Port=3306;Database=cache;User=root;Password=123456';AppId=abc1234;
The following JDBC URL uses the Microsoft JDBC Driver for SQL Server:
jdbc:openexchangerates:Cache Driver=com.microsoft.sqlserver.jdbc.SQLServerDriver;Cache Connection='jdbc:sqlserver://localhost\sqlexpress:7437;user=sa;password=123456;databaseName=Cache';AppId=abc1234;
The following is a JDBC URL for the Oracle Thin Client:
jdbc:openexchangerates:Cache Driver=oracle.jdbc.OracleDriver;CacheConnection='jdbc:oracle:thin:scott/tiger@localhost:1521:orcldb';AppId=abc1234;
NOTE: If using a version of Oracle older than 9i, the cache driver will instead be oracle.jdbc.driver.OracleDriver .
The following JDBC URL uses the official PostgreSQL JDBC driver:
jdbc:openexchangerates:CacheDriver=cdata.jdbc.postgresql.PostgreSQLDriver;CacheConnection='jdbc:postgresql:User=postgres;Password=admin;Database=postgres;Server=localhost;Port=5432;';AppId=abc1234;
string
""
The cache database is determined based on the CacheDriver and CacheConnection properties. Both properties are required to use the cache database. Examples of common cache database settings can be found below. For more information on setting the caching database's driver, refer to CacheDriver.
The connection string specified in the CacheConnection property is passed directly to the underlying CacheDriver. Consult the documentation for the specific JDBC driver for more information on the available properties. Make sure to include the JDBC driver in your application's classpath.
The driver simplifies caching to Derby, only requiring you to set the CacheLocation property to make a basic connection.
Alternatively, you can configure the connection to Derby manually using CacheDriver and CacheConnection. The following is the Derby JDBC URL syntax:
jdbc:derby:[subsubprotocol:][databaseName][;attribute=value[;attribute=value] ... ]
For example, to cache to an in-memory database, use the following:
jdbc:derby:memory
To cache to SQLite, you can use the SQLite JDBC driver. The following is the syntax of the JDBC URL:
jdbc:sqlite:dataSource
The installation includes the CData JDBC Driver for MySQL. The following is an example JDBC URL:
jdbc:mysql:User=root;Password=root;Server=localhost;Port=3306;Database=cache
The following are typical connection properties:
The JDBC URL for the Microsoft JDBC Driver for SQL Server has the following syntax:
jdbc:sqlserver://[serverName[\instance][:port]][;database=databaseName][;property=value[;property=value] ... ]
For example:
jdbc:sqlserver://localhost\sqlexpress:1433;integratedSecurity=true
The following are typical SQL Server connection properties:
To use integrated security, you will also need to add sqljdbc_auth.dll to a folder on the Windows system path. This file is located in the auth subfolder of the Microsoft JDBC Driver for SQL Server installation. The bitness of the assembly must match the bitness of your JVM.
The following is the conventional JDBC URL syntax for the Oracle JDBC Thin driver:
jdbc:oracle:thin:[userId/password]@[//]host[[:port][:sid]]
For example:
jdbc:oracle:thin:scott/tiger@myhost:1521:orcl
The following are typical connection properties:
Data Source: The connect descriptor that identifies the Oracle database. This can be a TNS connect descriptor, an Oracle Net Services name that resolves to a connect descriptor, or, after version 11g, an Easy Connect naming (the host name of the Oracle server with an optional port and service name).
The following is the JDBC URL syntax for the official PostgreSQL JDBC driver:
jdbc:postgresql:[//[host[:port]]/]database[[?option=value][[&option=value][&option=value] ... ]]
For example, the following connection string connects to a database on the default host (localhost) and port (5432):
jdbc:postgresql:postgres
The following are typical connection properties:
string
"%APPDATA%\\CData\\OpenExchangeRates Data Provider"
The CacheLocation is a simple, file-based cache. The driver uses Java DB, Oracle's distribution of the Derby database. To cache to Java DB, you will need to add the Java DB JAR file to the classpath. The JAR file, derby.jar, is shipped in the JDK and located in the db subfolder of the JDK installation.
If left unspecified, the default location is "%APPDATA%\\CData\\OpenExchangeRates Data Provider" with %APPDATA% being set to the user's configuration directory:
Platform | %APPDATA% |
Windows | The value of the APPDATA environment variable |
Mac | ~/Library/Application Support |
Linux | ~/.config |
int
600
The tolerance for stale data in the cache specified in seconds. This only applies when AutoCache is used. The driver checks with the data source for newer records after the tolerance interval has expired. Otherwise, it returns the data directly from the cache.
bool
false
When Offline = true, all queries execute against the cache as opposed to the live data source. In this mode, certain queries like INSERT, UPDATE, DELETE, and CACHE are not allowed.
bool
false
As you execute queries with this property set, table metadata in the Open Exchange Rates catalog are cached to the file store specified by CacheLocation if set or the user's home directory otherwise. A table's metadata will be retrieved only once, when the table is queried for the first time.
The driver automatically persists metadata in memory for up to two hours when you first discover the metadata for a table or view and therefore, CacheMetadata is generally not required. CacheMetadata becomes useful when metadata operations are expensive such as when you are working with large amounts of metadata or when you have many short-lived connections.
int
0
When BatchSize is set to a value greater than 0, the batch operation will split the entire batch into separate batches of size BatchSize. The split batches will then be submitted to the server individually. This is useful when the server has limitations on the size of the request that can be submitted.
Setting BatchSize to 0 will submit the entire batch as specified.
int
0
The maximum lifetime of a connection in seconds. Once the time has elapsed, the connection object is disposed. The default is 0 which indicates there is no limit to the connection lifetime.
bool
false
When set to true, a connection will be made to Open Exchange Rates when the connection is opened. This property enables the Test Connection feature available in various database tools.
This feature acts as a NOOP command as it is used to verify a connection can be made to Open Exchange Rates and nothing from this initial connection is maintained.
Setting this property to false may provide performance improvements (depending upon the number of times a connection is opened).
int
-1
Limits the number of rows returned rows when no aggregation or group by is used in the query. This helps avoid performance issues at design time.
string
""
The properties listed below are available for specific use cases. Normal driver use cases and functionality should not require these properties.
Specify multiple properties in a semicolon-separated list.
CachePartial=True | Caches only a subset of columns, which you can specify in your query. |
QueryPassthrough=True | Passes the specified query to the cache database instead of using the SQL parser of the driver. |
DefaultColumnSize | Sets the default length of string fields when the data source does not provide column length in the metadata. The default value is 2000. |
ConvertDateTimeToGMT | Determines whether to convert date-time values to GMT, instead of the local time of the machine. |
RecordToFile=filename | Records the underlying socket data transfer to the specified file. |
int
60
The allowed idle time a connection can remain in the pool until the connection is closed. The default is 60 seconds.
int
100
The maximum connections in the pool. The default is 100. To disable this property, set the property value to 0 or less.
int
1
The minimum number of connections in the pool. The default is 1.
int
60
The max seconds to wait for a connection to become available. If a new connection request is waiting for an available connection and exceeds this time, an error is thrown. By default, new requests wait forever for an available connection.
string
""
This setting is particularly helpful in Entity Framework, which does not allow you to set a value for a pseudo column unless it is a table column. The value of this connection setting is of the format "Table1=Column1, Table1=Column2, Table2=Column3". You can use the "*" character to include all tables and all columns; for example, "*=*".
string
""
The RTK property may be used to license a build. See the included licensing file to see how to set this property. The runtime key is only available if you purchased an OEM license.
bool
true
When SupportEnhancedSQL = true, the driver offloads as much of the SELECT statement processing as possible to Open Exchange Rates and then processes the rest of the query in memory. In this way, the driver can execute unsupported predicates, joins, and aggregation.
When SupportEnhancedSQL = false, the driver limits SQL execution to what is supported by the Open Exchange Rates API.
The driver determines which of the clauses are supported by the data source and then pushes them to the source to get the smallest superset of rows that would satisfy the query. It then filters the rest of the rows locally. The filter operation is streamed, which enables the driver to filter effectively for even very large datasets.
The driver uses various techniques to join in memory. The driver trades off memory utilization against the requirement of reading the same table more than once.
The driver retrieves all rows necessary to process the aggregation in memory.
int
60
If Timeout = 0, operations do not time out. The operations run until they complete successfully or until they encounter an error condition.
If Timeout expires and the operation is not yet complete, the driver throws an exception.
bool
false
This property enables connection pooling. The default is false. See Connection Pooling for information on using connection pools.
Query Currency symbols available from Open Exchange Rates.
Select all Currency symbols:
SELECT * FROM Currencies
Select experimental Currencies:
SELECT * FROM Currencies WHERE ShowExperimental=true
Name | Type | References | Description |
Currency | String | Currency (3-letter code). | |
Name | String | Long name for the currency. |
Pseudo column fields are used in the WHERE clause of SELECT statements and offer a more granular control over the tuples that are returned from the data source.
Name | Type | Description | |
ShowExperimental | Boolean | Whether to show experimental currencies from the unofficial, black market, and alternative currencies list in OpenExchangeRates. |
Query Historical exchange rates for any date available from Open Exchange Rates.
Select all Historical exchange rates for the current Date:
SELECT * FROM Historical
Select all Historical exchange rates for the specified Date:
SELECT * FROM Historical WHERE Date='2016-01-01'
Name | Type | References | Description |
Currency | String | Currency (3-letter code). | |
Value | Decimal | Rate for the currency. | |
Date | Date | The requested date. | |
Base | String | Base currency (3-letter code. Default: USD). |
Pseudo column fields are used in the WHERE clause of SELECT statements and offer a more granular control over the tuples that are returned from the data source.
Name | Type | Description | |
Symbols | String | Limit results to specific currencies (comma-separated list of 3-letter codes). |
Query the Latest exchange rates available from Open Exchange Rates.
Select all of the Latest exchange rates:
SELECT * FROM Latest
Select from the Latest exchange rates by specifying Symbols in a comma-separated list:
SELECT * FROM Latest WHERE Symbols='ALL,AUR,GBP'
Name | Type | References | Description |
Currency | String | Currency (3-letter code). | |
Value | Decimal | Rate for the currency. | |
Base | String | Base currency (3-letter code. Default: USD). |
Pseudo column fields are used in the WHERE clause of SELECT statements and offer a more granular control over the tuples that are returned from the data source.
Name | Type | Description | |
Symbols | String | Limit results to specific currencies (comma-separated list of 3-letter codes). |
Query historical exchange rates for a given time period.
If you do not provide a Start and End date, results are returned for a default range of three months.
SELECT * FROM Timeseries WHERE Start='2013-01-01' AND End='2013-01-07'
If you want to show more Currencies, set the Location connection property and modify the Timeseries.rsd file. You can base your column off an existing one; for example, the USD column below. Columns need at least a name and data type:
<attr name="USD" xs:type="double" desc="U.S. Dollar Currency."/>
Then define the list of Symbols that you want to select in a comma-separated list:
SELECT * FROM Timeseries WHERE Symbols='BTC,EUR,HKD' AND Start='2013-01-01' AND End='2013-01-07'
Name | Type | References | Description |
Date | Date | Date of current currency. | |
EUR | Decimal | European Euro currency. | |
JPY | Decimal | Japanese Yen Currency. | |
GBP | Decimal | British Pound Currency. | |
CAD | Decimal | Canadian Dollar Currency. | |
CHF | Decimal | Swiss Franc Currency. | |
USD | Decimal | U.S. Dollar Currency. | |
Base | String | Base currency (3-letter code. Default: USD). |
Pseudo column fields are used in the WHERE clause of SELECT statements and offer a more granular control over the tuples that are returned from the data source.
Name | Type | Description | |
Start | Date | Start date. | |
End | Date | End date. | |
Symbols | String | Limit results to specific currencies (comma-separated list of 3-letter codes). |