Replicate Multiple Teradata Accounts via the CData Sync CLI

CData Sync for Teradata is a stand-alone application that provides solutions for a variety of replication scenarios such as replicating sandbox and production instances into your database. Both Sync for Windows and Sync for Java include a command-line interface (CLI) that makes it easy to manage multiple Teradata connections. In this article we show how to use the CLI to replicate multiple Teradata accounts.

Configure Teradata Connections

You can save connection and email notification settings in an XML configuration file. To replicate multiple Teradata accounts, use multiple configuration files. Below is an example configuration to replicate Teradata to SQLite:

Windows

<?xml version="1.0" encoding="UTF-8" ?>
<CDataSync>
 <DatabaseType>SQLite</DatabaseType>
 <DatabaseProvider>System.Data.SQLite</DatabaseProvider>
 <ConnectionString>User=myuser;Password=mypassword;Server=localhost;Database=mydatabase;</ConnectionString>
 <ReplicateAll>False</ReplicateAll>
 <NotificationUserName></NotificationUserName>
 <DatabaseConnectionString>Data Source=C:\my.db</DatabaseConnectionString>
 <TaskSchedulerStartTime>09:51</TaskSchedulerStartTime>
 <TaskSchedulerInterval>Never</TaskSchedulerInterval>
</CDataSync>

Java

<?xml version="1.0" encoding="UTF-8" ?>
<CDataSync>
<DatabaseType>SQLite</DatabaseType>
 <DatabaseProvider>org.sqlite.JDBC</DatabaseProvider>
 <ConnectionString>User=myuser;Password=mypassword;Server=localhost;Database=mydatabase;</ConnectionString>
 <ReplicateAll>False</ReplicateAll>
 <NotificationUserName></NotificationUserName>
 <DatabaseConnectionString>Data Source=C:\my.db</DatabaseConnectionString>
</CDataSync>

To connect to Teradata, provide authentication information and specify the database server name.

• User: Set this to the username of a Teradata user.
• Password: Set this to the password of the Teradata user.
• DataSource: Specify the Teradata server name, DBC Name, or TDPID.
• Port: Specify the port the server is running on.
• Database: Specify the database name. If not specified, the default database is used.

Configure Queries for Each Teradata Instance

Sync enables you to control replication with standard SQL. The REPLICATE statement is a high-level command that caches and maintains a table in your database. You can define any SELECT query supported by the Teradata API. The statement below caches and incrementally updates a table of Teradata data:

REPLICATE NorthwindProducts;

You can specify a file containing the replication queries you want to use to update a particular database. Separate replication statements with semicolons. The following options are useful if you are replicating multiple Teradata accounts into the same database:

You can use a different table prefix in the REPLICATE SELECT statement:

REPLICATE PROD_NorthwindProducts SELECT * FROM NorthwindProducts 

Alternatively, you can use a different schema:

REPLICATE PROD.NorthwindProducts SELECT * FROM NorthwindProducts

Run Sync

After you have configured the connection strings and replication queries, you can run Sync with the following command-line options:

Windows

TeradataSync.exe -g MyProductionTeradataConfig.xml -f MyProductionTeradataSync.sql

Java

java -Xbootclasspath/p:c:\sqlitejdbc.jar -jar TeradataSync.jar -g MyProductionTeradataConfig.xml -f MyProductionTeradataSync.sql