| AndPrecondition (81%) |
| ChangeLogPropertyDefinedPrecondition (10%) |
| ChangeSetExecutedPrecondition (9%) |
| ColumnExistsPrecondition (10%) |
| DBMSPrecondition (58%) |
| ErrorPrecondition (0%) |
| FailedPrecondition (70%) |
| ForeignKeyExistsPrecondition (7%) |
| IndexExistsPrecondition (6%) |
| NotPrecondition (14%) |
| OrPrecondition (12%) |
| PreconditionContainer (56%) |
| PrimaryKeyExistsPrecondition (8%) |
| RunningAsPrecondition (40%) |
| SequenceExistsPrecondition (11%) |
| SqlPrecondition (10%) |
| TableExistsPrecondition (11%) |
| ViewExistsPrecondition (11%) |