COML_CATEGORYUI_FCAT 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 "Field Catalog for Category Tree" 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_CATEGORYUI_FCAT TYPE COML_CATEGORYUI_FCAT.
The COML_CATEGORYUI_FCAT table consists of various fields, each holding specific information or linking keys about Field Catalog for Category Tree data available in SAP. These include CATEGORY_ID (Category ID), CATEGORY_TEXT (Category Description)... 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. .