I have funny characters in my example sets. I suspect an encoding problem.

User13

Problem:

Encoding settings of the database, the settings of a database connection configured in RapidMiner Studio or Server, or the JBoss instance that hosts RapidMiner Server are incorrect. Many file input operators can also specify an encoding.

Solution:

You should use the
utf8
尽可能的编码。Database settings can be made per

• 
  Database
  : In MySQL, use “ALTER DATABASE xxx DEFAULT CHARACTER SET utf8”
  

• 
  Table
  : Newly created tables will inherit from the default character set and can be otherwise specified in the CREATE statement.
  

• 
  RapidMiner Studio JDBC connection
  : Set the appropriate connection properties (see below for a list). In RapidMiner Studio this is possible via Tools > Manage Database Connections > Advanced.
  

The encodingName you want to use is almost always utf8. What exactly the name of the JDCB property is, depends on the database. Known values are:

• 
  MySQL:
  characterEncoding
  

• 
  MS SQL Server via JTDS driver:
  CHARSET
  

• 
  Oracle:
  charset
  

Processes can configure the encoding via parameters of input operators.