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- If the SQL field size of the field in the packed entity is greater than the existing field's size, the existing field's size will be updated.
- If the SQL field size of the field in the packed entity is less than the existing field's size, the existing field's size will not be updated.
- The field type of the field in the existing entity will not be updated, only the size of the field. For example, if the field in the packed entity is of field type and size nchar(15) and the same field in the existing entity is of field type and size nvarchar(10), the field in the existing entity will be updated to nvarchar(15).
- If a field in the existing entity is deleted before unpacking an entity that includes the field, the deleted field will be added back to the existing entity.
- If a field in the packed entity does not exist in the existing entity, the unpacking process will add the field to the entity. The unpacking process will not modify the following data for fields in an existing entity: Description, Display Name, or Default Value.