Allowed Changes to Virtual Data Items details the changes that can be made to virtual data items during an update, reorganization, or modeling process. An asterisk (*) refers to the explanatory note following the table.
Table 58. Allowed Changes to Virtual Data Items
|
Option |
Model |
Update |
File Format Conversion (No Item Changes) |
Record Format Conversion (Item Changes) |
|---|---|---|---|---|
|
Add new virtual data item. |
No |
No |
No |
|
|
Delete existing virtual data item. |
No |
No |
No |
No |
|
Change virtual data item name. |
No |
No |
No |
|
|
Change virtual data item size. |
No |
No |
No |
|
|
Change OCCURS option. |
No |
No |
No |
|
|
Change number of occurrences. |
No |
No |
No |
|
|
Change precision. |
No |
No |
No |
|
|
Change scale factor. |
No |
No |
No |
|
|
Change signed option. |
No |
No |
No |
|
|
Change virtual item value. |
No |
Yes* |
Yes |
|
|
Add or delete Boolean values in a virtual Boolean item. |
No |
No |
No |
No |
|
Change order in which Boolean values are declared in an existing virtual Boolean item. |
No |
No |
No |
No |
Explanatory Note
Recompile the DMSUPPORT library.
