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The PO_Tables.html file in Oracle E-Business Suite (EBS) 12.1.1 or 12.2.2 serves as a technical reference document outlining the key tables involved in the Purchasing (PO) module. This file is particularly useful for developers, functional consultants, and database administrators who need to understand the underlying data structure of Oracle Purchasing for customizations, integrations, or troubleshooting. Below is a detailed breakdown of its significance and content.

Purpose and Scope

The PO_Tables.html document provides a structured overview of the primary database tables that store purchasing-related data in Oracle EBS. These tables capture critical information such as purchase orders, requisitions, suppliers, receipts, and approvals. The file typically includes table names, descriptions, key columns, and relationships between tables, enabling users to navigate the PO module's data model efficiently.

Key Tables Covered

The document categorizes tables based on their functional relevance. Some of the most important tables include:

1. Purchase Order Headers (PO_HEADERS_ALL)

This table stores high-level information about purchase orders, such as PO number, supplier, currency, and status. Key columns include PO_HEADER_ID (primary key), AGENT_ID (buyer), and TYPE_LOOKUP_CODE (PO type). It links to other transactional tables like PO_LINES_ALL and PO_DISTRIBUTIONS_ALL.

2. Purchase Order Lines (PO_LINES_ALL)

This table contains line-level details of purchase orders, such as item descriptions, quantities, and unit prices. The PO_LINE_ID and PO_HEADER_ID columns establish relationships with the header and distributions tables.

3. Purchase Order Distributions (PO_DISTRIBUTIONS_ALL)

This table tracks accounting distributions for PO lines, linking to General Ledger (GL) accounts. Key columns include PO_DISTRIBUTION_ID, DESTINATION_TYPE_CODE, and CHARGE_ACCOUNT_ID.

4. Requisitions (REQ_HEADERS_ALL, REQ_LINES_ALL)

These tables store requisition headers and lines, which are often converted into purchase orders. They include fields like REQUISITION_HEADER_ID, PREPARER_ID, and STATUS.

5. Supplier Tables (PO_VENDORS, PO_VENDOR_SITES_ALL)

These tables store supplier master data, including vendor names, addresses, and payment terms. VENDOR_ID and VENDOR_SITE_ID are critical foreign keys in PO transactions.

Technical Relationships

The document highlights foreign key relationships between tables, such as:
  • PO_HEADERS_ALL.PO_HEADER_ID → PO_LINES_ALL.PO_HEADER_ID
  • PO_LINES_ALL.PO_LINE_ID → PO_DISTRIBUTIONS_ALL.PO_LINE_ID
  • PO_HEADERS_ALL.VENDOR_ID → PO_VENDORS.VENDOR_ID

Usage in Customizations

Developers leverage this document to:
  • Write custom reports using SQL queries joining PO tables.
  • Debug data issues by tracing transactional flows across tables.
  • Extend functionality by creating triggers or views on PO tables.

Version-Specific Considerations

While the core table structures remain consistent between Oracle EBS 12.1.1 and 12.2.2, minor differences may exist in column additions or indexing. The document may also reference Oracle's underlying database views (e.g., PO_HEADERS_V) which abstract multi-org structures.

Conclusion

The PO_Tables.html file is an indispensable resource for anyone working with Oracle Purchasing data. By providing a clear map of tables and relationships, it accelerates development, enhances data integrity, and ensures compliance with Oracle EBS best practices. For comprehensive implementation, users should cross-reference this document with Oracle's official data model diagrams and API documentation.