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Problem connecting oracle database

User: "Printil"
New Altair Community Member
Updated by Jocelyn
Dear RapidMiner users,

I am trying to read data from a oracle database. However, when I run the procedure, the following error is showed:

Exception: java.lang.NoClassDefFoundError
Message: Could not initialize class oracle.jdbc.driver.DMSFactory
Stack trace:

  oracle.jdbc.driver.PhysicalConnection.createDMSSensors(PhysicalConnection.java:4203)
  oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:629)
  oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:218)
  oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:29)
  oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:538)
  com.rapidminer.tools.jdbc.DriverAdapter.connect(DriverAdapter.java:52)
  java.sql.DriverManager.getConnection(DriverManager.java:582)
  java.sql.DriverManager.getConnection(DriverManager.java:185)
  com.rapidminer.tools.jdbc.DatabaseHandler.connect(DatabaseHandler.java:146)
  com.rapidminer.tools.jdbc.DatabaseHandler.getConnectedDatabaseHandler(DatabaseHandler.java:117)
  com.rapidminer.operator.io.DatabaseExampleSource.getConnectedDatabaseHandler(DatabaseExampleSource.java:290)
  com.rapidminer.operator.io.DatabaseExampleSource.getResultSet(DatabaseExampleSource.java:303)
  com.rapidminer.operator.io.ResultSetExampleSource.createExampleSet(ResultSetExampleSource.java:97)
  com.rapidminer.operator.io.DatabaseExampleSource.createExampleSet(DatabaseExampleSource.java:168)
  com.rapidminer.operator.io.AbstractExampleSource.read(AbstractExampleSource.java:52)
  com.rapidminer.operator.io.AbstractExampleSource.read(AbstractExampleSource.java:1)
  com.rapidminer.operator.io.AbstractReader.doWork(AbstractReader.java:119)
  com.rapidminer.operator.Operator.execute(Operator.java:752)
  com.rapidminer.operator.ExecutionUnit.execute(ExecutionUnit.java:608)
  com.rapidminer.operator.OperatorChain.doWork(OperatorChain.java:357)
  com.rapidminer.operator.ProcessRootOperator.doWork(ProcessRootOperator.java:345)
  com.rapidminer.operator.Operator.execute(Operator.java:752)
  com.rapidminer.Process.run(Process.java:719)
  com.rapidminer.Process.run(Process.java:660)
  com.rapidminer.Process.run(Process.java:650)
  com.rapidminer.gui.ProcessThread.run(ProcessThread.java:65)

Can you help me?
Thank you so much.

Best regards,
Ana Oliveira

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