roman's(IV is very simple and basic (7 min.) solution to pre fill field with an init value.
Per table you are able to define init value templates. Per Template you are able to assign
init values. These values are then automatically filled on creation of a record.
IMPORTANT NOTE:
Course of the basic functionally you could easy mess up your database integrity using roman's(IV. Here is a sample of how you could do this.
When you create an Item you could pre fill the 'Base Unit of Measure' with the value 'PCS'. Although this init value is a correct value, the 'Item Unit of Measure' table should contain a record with this value as well. roman's(IV does not create this record (yet). This will course a database integrity 'error'.