diff --git a/src/db/migration/V20170523_1500__mantis8900.sql b/src/db/migration/V20170523_1500__mantis8900.sql
new file mode 100644
index 000000000..a3caa7d17
--- /dev/null
+++ b/src/db/migration/V20170523_1500__mantis8900.sql
@@ -0,0 +1,25 @@
+declare
+    object_exists exception;
+    pragma exception_init (object_exists , -02275);
+begin
+	execute immediate 'ALTER TABLE PTOVTA_EMPRESA_CONTABANCARIA ADD FOREIGN KEY (EMPRESACONTABANCARIA_ID) REFERENCES EMPRESA_CONTABANCARIA (EMPRESACONTABANCARIA_ID)';
+    exception when object_exists then null;
+end;
+/
+
+declare
+    object_exists exception;
+    pragma exception_init (object_exists , -02260);
+begin
+	execute immediate 'ALTER TABLE PTOVTA_EMPRESA ADD CONSTRAINT PTOVTA_EMPRESA_PK PRIMARY KEY (PTOVTAEMPRESA_ID)';
+    exception when object_exists then null;
+end;
+/
+
+declare
+    object_exists exception;
+    pragma exception_init (object_exists , -02275);
+begin
+	execute immediate 'ALTER TABLE PTOVTA_EMPRESA_CONTABANCARIA ADD FOREIGN KEY (PTOVTAEMPRESA_ID) REFERENCES PTOVTA_EMPRESA (PTOVTAEMPRESA_ID)';
+    exception when object_exists then null;
+end;