COML_PRCAT_LOCATOR_UI is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Layout Structure for Initial Screen/Locator" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_COML_PRCAT_LOCATOR_UI TYPE COML_PRCAT_LOCATOR_UI.
The COML_PRCAT_LOCATOR_UI table consists of various fields, each holding specific information or linking keys about Layout Structure for Initial Screen/Locator data available in SAP. These include HIERARCHY_ID (Category Hierarchy ID), HIERARCHY_TEXT (Category Hierarchy Description), SEARCH (Search Help: Hierarchy/Category), SEARCH_ID (ID/Description for Hierarchy/Category Search)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .