extends|composite_category_typ|not_applicable|oe.category_typ
flag|composite_category_typ|not_applicable|not final 
field|category_name|not_applicable|varchar2(50)
field|category_description|not_applicable|varchar2(1000)
field|category_id|not_applicable|number(2)
field|parent_category_id|not_applicable|number(2)
field|subcategory_ref_list|not_applicable|subcategory_ref_list_typ
function|category_describe|not_applicable|varchar2