COML_CATEGORY 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 "Screen Structure: Category" 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_CATEGORY TYPE COML_CATEGORY.
The COML_CATEGORY table consists of various fields, each holding specific information or linking keys about Screen Structure: Category data available in SAP. These include CATEGORY_TEXT (Category Description), ASSIGNABLE (Products / Objects Can Be Assigned to the Category), NON_ASSIGNABLE (Products Cannot Be Assigned to the Category)... 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. .