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Connect to an Oracle Source Database

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Important

Change Data Capture for Oracle by Attunity is deprecated now. For details, refer to the announcement.

Use the Oracle Source page to provide the information necessary to connect to the Oracle source database. The CDC instance will read the redo logs of the Oracle database you are connected to.

Oracle Connect String
Enter the Oracle connect string to the computer with the Oracle database you are using. The connect string is written in one of the following ways:

host[:port][/service name]

The connection string can also specify an Oracle Net connect descriptor, for example, (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp) (HOST=erp.contoso.com) (PORT=1521)) (CONNECT_DATA=(SERVICE_NAME=orcl)))

If using a directory server or tnsnames, the connect string can be the name of the connection.

Oracle Log Mining Authentication
To enter the credentials for the Oracle database user that is authorized for log mining, select one of the following:

  • Windows Authentication: Select this to use the current Windows domain credentials. You can use this option only if the Oracle database is configured to work with Windows authentication.

  • Oracle Authentication: If you select this option, you must type the User Name and Password for the user in the Oracle database you are connecting to.

Note

A user must have the following privileges granted in the Oracle database to be a log-mining user.

  • SELECT on <any-captured-table>
  • SELECT ANY TRANSACTION
  • EXECUTE on DBMS LOGMNR
  • SELECT on V$LOGMNR CONTENTS
  • SELECT on V$ARCHIVED LOG
  • SELECT on V$LOG
  • SELECT on V$LOGFILE
  • SELECT on V$DATABASE
  • SELECT on V$THREAD
  • SELECT on ALL INDEXES
  • SELECT on ALL OBJECTS
  • SELECT on DBA OBJECTS
  • SELECT on ALL TABLES

If any of these privileges cannot be granted to a V$xxx, then grant them to the V_S$xxx.

Test Connection
Click Test Connection to determine whether you established a connection with the remote computer that has the Oracle database. A dialog box opens to inform you whether the connection was successful.

Important

Due to a known issue connection to the Oracle source database may fail if the CDC Designer is not run as an administrator. If connection fails, close and restart the CDC Designer using the Run as administrator option.

After you finish entering information on this page, click Next to Select Oracle Tables and Columns.

See Also

How to Create the SQL Server Change Database Instance
Edit Instance Properties