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Overview

IGSBV_USEC_REFERENCES is a read-only base view owned by the APPS schema in Oracle E-Business Suite. It belongs to the IGS (Student System) product family, which supports the administration of academic structures, student records, and related reference data. The view describes the relationship between unit section reference records and the reference codes assigned to them, joining three base tables to present a denormalised, human-readable result set.

Its primary role is to expose the linkage between a unit section reference (a coded reference attached to a unit offering section) and the global reference code types defined in the Student System. By surfacing the descriptive text for both the reference code itself and its type, the view removes the need for report authors and integrators to write repetitive joins against the underlying code tables. This makes it well suited to operational reports, extracts, and integration interfaces that must translate internal code values into meaningful descriptions for end users or external systems. The view is defined WITH READ ONLY, so it supports query access exclusively and cannot be used as a DML target.

Underlying Base Objects

The view is constructed as an inner join across three documented base tables, each of which contributes a distinct piece of the relationship:

• IGS_PS_USEC_REF_CD — supplies the unit section reference code rows, including the reference code type, code, and description. It is aliased US in the view definition.
• IGS_GE_REF_CD_TYPE — the reference code type lookup, aliased RE, joined on US.REFERENCE_CODE_TYPE = RE.REFERENCE_CD_TYPE. It provides the descriptive text for the reference code type.
• IGS_PS_USEC_REF — the unit section reference header, aliased USR, joined on US.UNIT_SECTION_REFERENCE_ID = USR.UNIT_SECTION_REFERENCE_ID. It contributes the reference title.

Because the joins are equi-joins without outer-join semantics, a unit section reference code row appears in the result set only when matching rows exist in both the reference code type table and the unit section reference table. The metadata records no further documented base objects beyond these three, and the view text is fully specified.

Key Columns

The view exposes thirteen columns drawn from the three base tables and from runtime constants:

• REFERENCE_CODE_TYPE — the code identifying the reference code type; the join key to IGS_GE_REF_CD_TYPE.
• REFERENCE_CODE — the specific code value assigned within the reference code type.
• REFERENCE_CODE_DESC — the description associated with the reference code.
• REFERENCE_CODE_TYPE_DESC — descriptive text for the reference code type, sourced from the code type table. This is the column most directly associated with the search term "reference_code_type_desc," as it provides the human-readable label for the type.
• USEC_REFERENCE_CODE_ID — the identifier from the unit section reference code table, aliased as such in the view. The companion column REFERENCE_CODE_ID is projected as a constant NULL in this view.
• UNIT_SECTION_REFERENCE_ID — the identifier linking the code row to its unit section reference header.
• REFERENCE_DESCRIPTION — projected as a constant NULL in this view.
• UNIT_SECTION_REFERENCE_TITLE — the title of the unit section reference, sourced from IGS_PS_USEC_REF via the USR alias.
• CREATED_BY, CREATION_DATE, LAST_UPDATED_BY, LAST_UPDATE_DATE — standard Oracle EBS Who columns from the reference code table, supporting audit and change tracking.

The NULL placeholders for REFERENCE_CODE_ID and REFERENCE_DESCRIPTION indicate that this view is designed for uniformity with related views that populate those columns, allowing consumers to query a consistent column list across the family.

Common Use Cases and Queries

Typical uses include reporting on the reference codes assigned to unit section references within a programme or teaching period, validating that reference codes are attached to the expected types, and supplying descriptive reference data to downstream integration extracts. A representative query listing all references with their type and section title follows:

• SELECT reference_code_type, reference_code_type_desc, reference_code, reference_code_desc, unit_section_reference_title FROM igsbv_usec_references ORDER BY reference_code_type, reference_code;
• Filtering by type for a specific reference category: SELECT * FROM igsbv_usec_references WHERE reference_code_type = :p_type;
• Auditing recently changed reference assignments: SELECT unit_section_reference_title, reference_code, last_updated_by, last_update_date FROM igsbv_usec_references WHERE last_update_date >= :p_since;

Because the view is read-only and performs inner joins, queries should anticipate that code rows lacking a valid type or header record will not be returned; reconciliation against the base tables is advisable where completeness is critical.