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The ALR (Alert) tables in Oracle E-Business Suite (EBS) 12.1.1 and 12.2.2 are integral components of the Alert Manager module, which facilitates automated monitoring and notification of critical business events. These tables store configuration data, alert definitions, distribution lists, and execution logs, enabling organizations to proactively manage exceptions and key operational metrics. Below is a detailed summary of the ALR tables and their significance in Oracle EBS.

1. Core ALR Tables

The ALR schema comprises several key tables, including:
  • ALR_ALERTS: Stores metadata for alert definitions, such as name, description, frequency, and SQL query used to evaluate conditions.
  • ALR_ALERT_CHECKS: Tracks the execution history of alerts, including timestamps, status (success/failure), and result counts.
  • ALR_ALERT_OUTPUTS: Contains output templates for alert notifications, including email subject lines and message bodies.
  • ALR_ACTION_SETS: Defines actions triggered by alerts, such as sending emails, running concurrent programs, or invoking workflows.
  • ALR_DISTRIBUTION_LISTS: Manages recipient lists for alert notifications, including email addresses and user roles.

2. Alert Processing Workflow

The Alert Manager follows a systematic workflow:
  1. Definition: Alerts are configured in ALR_ALERTS with SQL queries to monitor data conditions (e.g., low inventory, unpaid invoices).
  2. Execution: The Oracle EBS scheduler runs alerts periodically, logging results in ALR_ALERT_CHECKS.
  3. Evaluation: If the query returns rows (indicating a triggered condition), actions defined in ALR_ACTION_SETS are executed.
  4. Notification: Output templates from ALR_ALERT_OUTPUTS format messages sent to recipients in ALR_DISTRIBUTION_LISTS.

3. Integration with Oracle EBS Modules

ALR tables interact with other EBS components:
  • Concurrent Processing: Alerts can launch concurrent programs via ALR_ACTION_SETS.
  • Workflow: Alerts may initiate workflows to route approvals or escalate issues.
  • User Management: Recipient lists leverage FND_USER and PER_PEOPLE tables for email addresses.

4. Technical Considerations

Key technical aspects include:
  • Performance: Complex alert queries may impact system performance; indexing and query optimization are critical.
  • Security: Alert data is subject to Oracle EBS’s data security model (e.g., FND_DATA_SECURITY).
  • Customization: Organizations often extend ALR tables to support custom notifications or integrate with third-party tools.

5. Version-Specific Differences (12.1.1 vs. 12.2.2)

While core ALR tables remain consistent, Oracle EBS 12.2.2 introduces:
  • Enhanced logging in ALR_ALERT_CHECKS for debugging.
  • Support for HTML email templates in ALR_ALERT_OUTPUTS.
  • Tighter integration with Oracle Fusion Middleware for notifications.

6. Best Practices

To optimize Alert Manager:
  • Regularly archive old records from ALR_ALERT_CHECKS to maintain performance.
  • Use bind variables in alert SQL to prevent SQL injection risks.
  • Leverage distribution groups (ALR_DISTRIBUTION_LISTS) for scalable recipient management.
In summary, the ALR tables in Oracle EBS 12.1.1 and 12.2.2 form the backbone of the Alert Manager module, enabling automated, real-time monitoring of business events. Their design supports flexibility, integration, and scalability, making them indispensable for operational oversight in enterprise environments.