| ERROR | cannot have multiple columns in REF constraint |
| CAUSE | An attempt was made to specify multiple columns in a single REF constraint. |
| ACTION | Specify separate constraints for each column and retry the operation. |
| ERROR | cannot have multiple columns in REF constraint |
| CAUSE | An attempt was made to specify multiple columns in a single REF constraint. |
| ACTION | Specify separate constraints for each column and retry the operation. |