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The FND_SESSIONS table in Oracle E-Business Suite (EBS) versions 12.1.1 and 12.2.2 is a critical repository table that stores session-related information for users accessing the system. It is part of the Oracle Applications Foundation (FND) layer, which provides core functionality for user sessions, security, and application framework management. This table plays a pivotal role in tracking active and historical user sessions, enabling administrators to monitor system usage, troubleshoot performance issues, and enforce security policies.

Structure and Key Columns

The FND_SESSIONS table contains several key columns that capture essential session details:
  • SESSION_ID: A unique identifier for each user session, often used as a primary key.
  • USER_ID: References the user in FND_USER who initiated the session.
  • RESPONSIBILITY_ID: Links to the responsibility assigned to the user during the session (FND_RESPONSIBILITY).
  • START_TIME and END_TIME: Timestamps marking session initiation and termination.
  • TERMINAL: The client machine or device identifier.
  • IP_ADDRESS: The network address of the user's device.
  • STATUS: Indicates whether the session is active (e.g., 'ACTIVE', 'INACTIVE', 'TERMINATED').
  • LOGIN_TYPE: Distinguishes between GUI, web, or other login methods.

Functional Role in Oracle EBS

The FND_SESSIONS table supports several critical functions:
  1. Session Management: Tracks active sessions to prevent unauthorized access or session hijacking.
  2. Audit and Compliance: Provides a historical record of user activities for auditing purposes.
  3. Performance Monitoring: Helps identify long-running or idle sessions that may impact system performance.
  4. Security Enforcement: Enables administrators to terminate suspicious sessions or enforce session timeout policies.

Integration with Other Modules

The table integrates with other Oracle EBS components:
  • FND_LOGINS: Stores high-level login information, with FND_SESSIONS providing granular session data.
  • ICX_SESSIONS: Used in Oracle iProcurement and iSupplier for web-based session tracking.
  • Concurrent Processing: Session data may influence concurrent request prioritization.

Administrative Considerations

For EBS 12.1.1 and 12.2.2, administrators should note:
  • Purge Policies: Implement regular purging of historical session data to maintain performance.
  • Indexing: Ensure proper indexing on SESSION_ID, USER_ID, and START_TIME for efficient queries.
  • Custom Extensions: The table may be extended for custom session attributes in modified implementations.

Technical Limitations

In earlier EBS versions, the table had limitations in tracking web sessions comprehensively, which were addressed in later releases through integration with ICX_SESSIONS. The table's design reflects Oracle EBS's traditional client-server architecture, with adaptations for web-based access in 12.x versions.

Conclusion

The FND_SESSIONS table remains a cornerstone of Oracle EBS's session management framework in both 12.1.1 and 12.2.2. Its structured approach to session tracking enables robust security, compliance, and system monitoring capabilities essential for enterprise deployments. Administrators should leverage this table proactively for both operational management and strategic capacity planning.