Primary Note for Troubleshooting Oracle Managed Distributed Transactions (Doc ID 100664.1)

Last updated on JULY 02, 2024

Applies to:

Oracle WebLogic Server - Version 10.3 to 10.3
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Purpose

This Primary document discusses Oracle Managed Distributed Transactions; by this, we refer to transactions that span two or more databases and involve Oracle Databases only.

The information contained in this document targets DBAs involved in environments that use Oracle Distributed Transactions. Distributed database concepts and troubleshooting steps are included in the note and, where appropriate, references to additional notes and documentation which provide further information on the relevant topic. You can use this information when investigating and troubleshooting in-doubt transactions; a section on SCN based recovery steps is also included.

The following Oracle Documentation references discuss Oracle Distributed Transactions:

Oracle12c Database Administrator's Guide
12c Release 1 (12.1)
Part Number E17636-21
Part V: Distributed Database Management

Oracle11gR2 Database Administrator's Guide
11g Release 2 (11.2)
Part Number E25494-05
Part V: Distributed Database Management

Oracle10g Database Administrator's Guide
10g Release 2 (10.2)
Part Number B14231-02
Part VII: Distributed Database Management

Oracle9i Database Administrator's Guide
Release 2 (9.2)
Part Number A96521-01
29 Managing a Distributed Database

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Scope

Note that within the scope of this document, for short, the term distributed transactions is used to refer to Oracle Managed Distributed Transactions(also known as homogeneous transactions).