The item_type category holds a code which identifies the data type of each data item. The data item _item_type.code is a child of the item, _item_type_list.code. Data type definitions are actually made in the item_type_list parent category. The item, _item_type.code, provides an indirect reference into the list of data type definitions in category item_type_list. This indirect reference is provided as a convenience to avoid the redeclaration of the full data type specification for each data item. The key item for this category is _item_type.name which is defined in the parent category, item. Only one data type may be specified for a data item.
The DDL for the item_type category is given in the following section.
save_ITEM_TYPE
_category.description
;
Attributes for specifying the data type code for each data item.
;
_category.id item_type
_category.mandatory_code no
_category_key.name '_item_type.name'
loop_
_category_group.id
'ddl_group'
'item_group'
save_