diff --git a/src/db/migration/V20170803_1248__mantis7987.sql b/src/db/migration/V20170803_1248__mantis7987.sql
index c6bb43180..a6f2718b2 100644
--- a/src/db/migration/V20170803_1248__mantis7987.sql
+++ b/src/db/migration/V20170803_1248__mantis7987.sql
@@ -1,10 +1,19 @@
-DECLARE
-    dup_val_on_index EXCEPTION;
-  PRAGMA EXCEPTION_INIT (dup_val_on_index, -00001);
 BEGIN
   EXECUTE IMMEDIATE
   'ALTER TABLE TIPO_EVENTO_EXTRA ADD INDVALIDAESTOQUE NUMBER(1)';
-  EXCEPTION WHEN dup_val_on_index THEN NULL;
+  EXCEPTION
+  WHEN OTHERS THEN
+  IF sqlcode != -1430
+  THEN
+    RAISE;
+  END IF;
 END;
 
-UPDATE TIPO_EVENTO_EXTRA SET INDVALIDAESTOQUE=0 WHERE INDVALIDAESTOQUE IS NULL;
+BEGIN
+ EXECUTE IMMEDIATE 'UPDATE TIPO_EVENTO_EXTRA SET INDVALIDAESTOQUE = 0 WHERE INDVALIDAESTOQUE IS NULL';
+  EXCEPTION
+  WHEN OTHERS THEN
+  IF sqlcode!=-904 THEN
+    RAISE;
+  END IF;
+END;