fix oracle and derby default
@@ -116,6 +116,8 @@ public class DropIndexTask extends BaseTableTask {
break;
case DERBY_EMBEDDED:
case ORACLE_12C:
+ sql.add("alter table " + theTableName + " drop constraint " + theIndexName);
+ break;
case MSSQL_2012:
sql.add("drop index " + theIndexName + " on " + theTableName);
break;
