Search Results lm_tech_hdr




Overview
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Overview

The LM_TECH_HDR table is a core data structure within the Process Manufacturing Product Development (GMD) module of Oracle E-Business Suite (EBS) 12.1.1 and 12.2.2. It serves as the master header table for defining and storing technical parameters. These parameters are critical specifications used throughout the product development lifecycle, governing the characteristics and quality standards for formulas, items, and processes. The table's primary role is to establish a unique, controlled list of parameter names within specific laboratory types, providing a foundational reference for detailed technical data stored in related child tables.

Key Information Stored

The table's structure is defined by its composite primary key, which enforces uniqueness and drives its relationships. The key columns are LAB_TYPE and TECH_PARM_NAME, indicating that a technical parameter name is scoped to a specific laboratory classification. Based on its foreign key relationships, the table likely contains additional descriptive and control columns. These may include TEXT_CODE for linking to descriptive flexfield text, QCASSY_TYP_ID for associating a quality assembly type from the QC_ASSY_TYP table, and other attributes to manage the parameter's status, creation date, and last update details. The header record acts as the parent definition for which specific values or data points are stored elsewhere.

Common Use Cases and Queries

This table is primarily accessed for master data maintenance and as a reference in queries for technical reporting. Common operational scenarios include setting up new technical parameters for a lab type or querying the list of available parameters for a given product development process. A typical query would involve joining to its child tables to retrieve a complete technical specification. For example, to list all parameters and their details for a specific lab type, one might use a SQL pattern such as:

  • SELECT hdr.lab_type, hdr.tech_parm_name, dtl.* FROM lm_tech_hdr hdr, lm_tech_dtl dtl WHERE hdr.lab_type = dtl.lab_type AND hdr.tech_parm_name = dtl.tech_parm_name AND hdr.lab_type = '<LAB_TYPE_CODE>';

Reporting use cases often involve aggregating technical parameter data linked to specific formulas (LM_FORM_DAT), items (LM_ITEM_DAT), or spreadsheets (LM_SPRD_PRM, LM_SPRD_TEC) for quality assurance or compliance documentation.

Related Objects

The LM_TECH_HDR table is central to a network of related objects, primarily as a parent table. As per the provided metadata, it has foreign key relationships to LM_LTYP_MST (Laboratory Type Master), LM_TEXT_HDR (Descriptive Text), and QC_ASSY_TYP (Quality Assembly Types). Crucially, it is referenced as a parent by several key detail tables, including LM_TECH_DTL (Technical Parameters Detail), LM_FORM_DAT (Formula Data), LM_ITEM_DAT (Item Data), LM_SPRD_PRM (Spreadsheet Parameters), and LM_SPRD_TEC (Spreadsheet Techniques). This structure ensures data integrity, where child records for technical data cannot exist without a corresponding master definition in LM_TECH_HDR.