| ERROR | Virtual column expression cannot be changed because an index is defined on column |
| CAUSE | Attempted to change the expression of a virtual column that was indexed. |
| ACTION | Alter index unsable. Change expression and then rebuild index. |
| ERROR | Virtual column expression cannot be changed because an index is defined on column |
| CAUSE | Attempted to change the expression of a virtual column that was indexed. |
| ACTION | Alter index unsable. Change expression and then rebuild index. |