Search Results flm_seq_task_constraints_pk

Overview

The FLM_SEQ_TASK_CONSTRAINTS table is a core data structure within the Oracle E-Business Suite Flow Manufacturing (FLM) module. It functions as the central repository for defining and storing the specific constraints applied to a flow sequencing task. Flow sequencing is a critical process in flow manufacturing for determining the optimal order in which jobs or assemblies should be released to the shop floor based on a set of predefined business rules. This table is essential for the configuration and execution of the sequencing engine, as it holds the detailed criteria—such as attribute-based rules, organizational parameters, and capacity limits—that govern the sequencing logic for a given task in both EBS 12.1.1 and 12.2.2.

Key Information Stored

The table's primary key, FLM_SEQ_TASK_CONSTRAINTS_PK, is a composite key consisting of LINE_ID, CONSTRAINT_NUMBER, and SEQ_TASK_ID. This structure allows multiple constraints to be defined for a single sequencing task line. Key columns include SEQ_TASK_ID, which links to the parent sequencing task; LINE_ID, which associates the constraint with a specific line within that task; and CONSTRAINT_NUMBER, which orders or uniquely identifies constraints within the line. The ATTRIBUTE_ID column is a critical foreign key to FLM_SEQ_ATTRIBUTES, indicating which specific manufacturing attribute (e.g., color, size, priority) the constraint evaluates. The ORGANIZATION_ID links to MTL_PARAMETERS, scoping the constraint to a specific inventory organization. Other typical columns (implied by standard design) would store the constraint's operator (e.g., =, >, <), target value, and weighting or priority.

Common Use Cases and Queries

Primary use cases involve the setup, analysis, and troubleshooting of flow sequencing. Implementers use this table to review or directly configure the constraint rules driving production scheduling. A common reporting need is to list all constraints for a specific sequencing task to understand its business logic. A sample query for this would join to FLM_SEQ_ATTRIBUTES to get the constraint name:

• SELECT c.*, a.ATTRIBUTE_NAME FROM FLM.FLM_SEQ_TASK_CONSTRAINTS c, FLM.FLM_SEQ_ATTRIBUTES a WHERE c.ATTRIBUTE_ID = a.ATTRIBUTE_ID AND c.SEQ_TASK_ID = :task_id ORDER BY c.LINE_ID, c.CONSTRAINT_NUMBER;

Another critical scenario is diagnosing sequencing results by comparing defined constraints in this table against the exceptions logged in the related FLM_SEQ_TASK_EXCEPTIONS table, which records when jobs violate these constraints during a sequencing run.

Related Objects

The table maintains defined foreign key relationships with several key EBS objects, as documented in the ETRM metadata:

• Referenced By (Child Table): FLM_SEQ_TASK_EXCEPTIONS references this table via its primary key columns (SEQ_TASK_ID, CONSTRAINT_NUMBER, LINE_ID). This stores violations of the constraints defined here.
• References (Parent Tables):
  • FLM_SEQ_TASK_LINES: Via LINE_ID and SEQ_TASK_ID. This is the header-line relationship for the sequencing task.
  • FLM_SEQ_ATTRIBUTES: Via ATTRIBUTE_ID. This provides the definition of the attribute being constrained.
  • MTL_PARAMETERS: Via ORGANIZATION_ID. This scopes the constraint to a manufacturing organization.