For each Column, ACS generates a column definition in the create table instruction created for the owning Table.
If the Column's Can Be Null property is selected, it is generated as NULL.
If the Column's Can Be Null property is not selected, it is generated as NOT NULL. Note that in SQL Oracle 10g, NOT NULL is defined by the absence of NULL.
If the Column's Unique property is selected, the column is generated as unique through a unique instruction.
If the Column's Prime property is selected, it is generated as part of the primary key through a primary key instruction.