C : Short integer
L : Long integer
DCB : Decimal
D : Date
M : Local menu
MM : Local menu with filter
ACB : clob
ABB : blob
But many other predefined types exist. They often make reference to an annex table (currency, country...). A dedicated dictionary is used to described them and they can be selected using the key that is used to obtain the list.
In the case of the facts tables, it is necessary to enter the additional information for certain types (dates, miscellaneous tables, local menus).