55. Teradata 
55.1. Prerequisite
The Teradata connector delivered by HOPEX is based on the native Teradata driver.
The native Teradata driver may already be installed with Teradata. If it is not the case, download it:
1> Download the terajdbc4.jar file from https://downloads.teradata.com/download/connectivity/jdbc-driver
2> Put this file in a directory accessible from the HOPEX Data Discovery Module, but not the module directory.
For example: "C:\ProgramData\MEGA\Hopex Application Server\HopexDataDiscoveryCustom"
3> This directory must be filled in the environment variable "PATH_HOPEXDATADISCOVERY" which must be created if it does not exist:
55.2. Connection Options
55.2.1. Authentication
Property | Description |
Port | Connects to the Teradata Database on the TCP/IP port specified. The default Teradata Database port is 1025. |
User | The Teradata user account used to authenticate. |
Password | The password used to authenticate the user. |
Database | The database selected as the default database when a Teradata connection is opened. |
DataSource | The Teradata server name or, equivalently, the DBC Name or TDPID. |
Account | Specifies an account string to override the default account string defined for the Teradata Database user. |
NewPassword | This connection parameter enables an application to change an expired password automatically. |
55.2.2. Connection
Property | Description |
ConnectFailureTTL | This option enables the CData ADO.NET Provider for Teradata remember the time of the last connection failure for each IP address/port combination. Also, the CData ADO.NET Provider for Teradata skips connection attempts to that IP address/port during subsequent logins for the number of seconds specified by the Connect Failure time-to-live (CONNECTFAILURETTL) value. |
ConnectFunction | Specifies whether the Teradata Database should allocate a Logon Sequence Number (LSN) for this session or associate this session with an existing LSN. |
55.2.3. Firewall
Property | Description |
FirewallType | The protocol used by a proxy-based firewall. |
FirewallServer | The name or IP address of a proxy-based firewall. |
FirewallPort | The TCP port for a proxy-based firewall. |
FirewallUser | The user name to use to authenticate with a proxy-based firewall. |
FirewallPassword | A password used to authenticate to a proxy-based firewall. |
55.2.4. Logging
Property | Description |
Logfile | A filepath which designates the name and location of the log file. |
Log | Specifies the logging level (verbosity) for a connection. Logging is always enabled. The logging levels are listed in order from terse to verbose. |
Verbosity | The verbosity level that determines the amount of detail included in the log file. |
LogModules | Core modules to be included in the log file. |
MaxLogFileSize | A string specifying the maximum size in bytes for a log file (for example, 10 MB). |
MaxLogFileCount | A string specifying the maximum file count of log files. |
55.2.5. Schema
Property | Description |
Location | A path to the directory that contains the schema files defining tables, views, and stored procedures. |
BrowsableSchemas | This property restricts the schemas reported to a subset of the available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC. |
Tables | This property restricts the tables reported to a subset of the available tables. For example, Tables=TableA,TableB,TableC. |
Views | Restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC. |
55.2.6. Miscellaneous
Property | Description |
BatchSize | The maximum size of each batch operation to submit. |
Charset | Specifies the session character set for encoding and decoding character data transferred to and from the Teradata Database. The default value is ASCII. |
ClientCharset | Specifies the Java character set for encoding and decoding character data transferred to and from the Teradata Database. |
ColumnName | Controls the behavior of the ResultSetMetaData getColumnName and getColumnLabel methods. |
ConnectionLifeTime | The maximum lifetime of a connection in seconds. Once the time has elapsed, the connection object is disposed. |
ConnectOnOpen | This property species whether to connect to the Teradata when the connection is opened. |
Cop | Specifies whether COP Discovery is performed. |
CopLast | Specifies how COP Discovery determines the last COP hostname. |
Ddstats | Specify the value for DDSTATS. |
DisableAutoCommitInBatch | Specifies whether or not disable the autocommit when executing the batch operation. |
EncryptData | Specify the EncryptData value, ON or OFF. |
ErrorQueryCount | Specifies the maximum number of times that JDBC FastLoad will attempt to query FastLoad Error Table 1 after a JDBC FastLoad operation. |
ErrorQueryInterval | Specifies the number of milliseconds that JDBC FastLoad will wait in between attempts to query FastLoad Error Table 1 after a JDBC FastLoad operation. |
ErrorTable1Suffix | Specifies the suffix for the name of FastLoad Error Table 1 created by JDBC FastLoad and JDBC FastLoad CSV. |
ErrorTable2Suffix | Specifies the suffix for the name of FastLoad Error Table 2 created by JDBC FastLoad and JDBC FastLoad CSV. |
ErrorTableDatabase | Specifies the database name for the FastLoad error tables created by JDBC FastLoad and JDBC FastLoad CSV. |
FieldSep | Specifies a field separator for use with JDBC FastLoad CSV only. The default separator is ',' (comma). |
FinalizeAutoClose | Specify the value for FinalizeAutoClose, ON or OFF. |
GeturlCredentials | Specify the value for GeturlCredentials, ON or OFF. |
Govern | Specify the value for GOVERN, ON or OFF. |
LiteralUnderscore | Automatically escape LIKE-predicate patterns in DatabaseMetaData calls, such as schemPattern and tableNamePattern. |
LobSupport | Specify the value for LobSupport, ON or OFF. |
LobTempTable | Specifies the name of a table with the following columns: id integer, bval blob, cval clob. |
LogData | Specifies additional data needed by a logon mechanism, such as a secure token, Distinguished Name, or a domain/realm name. |
LogMech | Specifies the Logon Mechanism, which determines the connection's authentication and encryption capabilities. |
LogonSequenceNumber | Specifies an existing Logon Sequence Number (LSN) to associate this session with. |
MaxMessageBody | Specifies the maximum Response Message size in bytes. |
MaxRows | 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. |
MaybeNull | Controls the behavior of the ResultSetMetaData.isNullable method. |
Other | These hidden properties are used only in specific use cases. |
Partition | Specifies the Teradata Database partition for the Connection. |
PoolIdleTimeout | The allowed idle time for a connection before it is closed. |
PoolMaxSize | The maximum connections in the pool. |
PoolMinSize | The minimum number of connections in the pool. |
PoolWaitTime | The max seconds to wait for an available connection. |
PrepSupport | Specifies whether the Teradata Database performs a prepare operation when a PreparedStatement or CallableStatement is created. |
QueryPassthrough | This option passes the query to the Teradata server as is. |
Readonly | You can use this property to enforce read-only access to Teradata from the provider. |
ReconnectCount | Enables Teradata Session Reconnect. Specifies the maximum number of times that the Teradata JDBC Driver will attempt to reconnect the session. |
ReconnectInterval | Enables Teradata Session Reconnect. Specifies the number of seconds that the Teradata JDBC Driver will wait in between attempts to reconnect the session. |
Redrive | Enables Teradata Session Reconnect, and also enables automatic redriving of SQL requests interrupted by database restart. |
RTK | The runtime key used for licensing. |
RunStartup | Specify the value for RunStartup, ON or OFF. |
Sessions | Specifies the number of FastLoad or FastExport connections to be created, where 1 <= number of FastLoad or FastExport connections <= number of AMPs. |
SipSupport | Controls whether the Teradata Database and Teradata JDBC Driver use StatementInfo Parcel (SIP) to convey metadata. |
SlobReceiveThreshold | Controls how small LOB values are received from the Teradata Database. Small LOB values are pre-fetched from the Teradata Database before the application explicitly reads data from Blob/Clob objects. |
SlobTransmitThreshold | Controls how small LOB values are transmitted to the Teradata Database. |
SpSpl | Specifies behavior for creating or replacing Teradata stored procedures. |
StrictEncode | Specifies behavior for encoding character data to transmit to the Teradata Database. |
Tcp | Specifies one or more TCP socket settings, separated by plus signs ("+"). |
Timeout | The value in seconds until the timeout error is thrown, canceling the operation. |
TMode | Specifies the transaction mode for the connection. |
TNano | Specifies the fractional seconds precision for all java.sql.Time values bound to a PreparedStatement or CallableStatement and transmitted to the Teradata Database as TIME or TIME WITH TIME ZONE values. |
TrustedSql | Specify the value for TrustedSql. |
TSNano | Specifies the fractional seconds precision for all java.sql.Timestamp values bound to a PreparedStatement or CallableStatement and transmitted to the Teradata Database as TIMESTAMP or TIMESTAMP WITH TIME ZONE values. |
Type | Specifies the type of protocol to be used with the Teradata Database for SQL statements. |
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. |
UseConnectionPooling | This property enables connection pooling. |
UseXViews | Specifies which Data Dictionary views should be queried to return result sets from DatabaseMetaData methods. |
For more details, see https://cdn.cdata.com/help/OTG/jdbc/.