diff --git a/config/database/hsql/create-schemas.sql b/config/database/hsql/create-schemas.sql
index d98d4694..7f88533c 100644
--- a/config/database/hsql/create-schemas.sql
+++ b/config/database/hsql/create-schemas.sql
@@ -1,7 +1,8 @@
 CREATE TABLE COLLABORATOR (
   id            INTEGER      NOT NULL IDENTITY,
   email         VARCHAR(255) NOT NULL,
-  creation_date DATE);
+  creation_date DATE
+);
 
 CREATE TABLE USER (
   id                  INTEGER      NOT NULL IDENTITY,
@@ -46,25 +47,26 @@ CREATE TABLE R_LABEL_MINDMAP (
   label_id         INTEGER            NOT NULL,
   PRIMARY KEY (mindmap_id, label_id),
   FOREIGN KEY (mindmap_id) REFERENCES MINDMAP (id),
-  FOREIGN KEY (label_id) REFERENCES LABEL (id)
+  FOREIGN KEY (label_id) REFERENCES LABEL (id) ON DELETE CASCADE ON UPDATE NO ACTION
 );
 
-CREATE TABLE MINDMAP_HISTORY
-(id            INTEGER       NOT NULL IDENTITY,
+CREATE TABLE MINDMAP_HISTORY (
+ id            INTEGER       NOT NULL IDENTITY,
  xml           LONGVARBINARY NOT NULL,
  mindmap_id    INTEGER       NOT NULL,
  creation_date DATETIME,
  editor_id     INTEGER       NOT NULL,
-  FOREIGN KEY (mindmap_id) REFERENCES MINDMAP (id));
+ FOREIGN KEY (mindmap_id) REFERENCES MINDMAP (id)
+);
 
-CREATE TABLE COLLABORATION_PROPERTIES
-(id                 INTEGER NOT NULL IDENTITY,
+CREATE TABLE COLLABORATION_PROPERTIES (
+ id                 INTEGER NOT NULL IDENTITY,
  starred            BOOLEAN NOT NULL,
  mindmap_properties VARCHAR(512)
 );
 
-CREATE TABLE COLLABORATION
-(id             INTEGER NOT NULL IDENTITY,
+CREATE TABLE COLLABORATION (
+ id             INTEGER NOT NULL IDENTITY,
  colaborator_id INTEGER NOT NULL,
  properties_id  INTEGER NOT NULL,
  mindmap_id     INTEGER NOT NULL,
@@ -75,8 +77,8 @@ CREATE TABLE COLLABORATION
 );
 
 
-CREATE TABLE TAG
-(id      INTEGER      NOT NULL IDENTITY,
+CREATE TABLE TAG (
+ id      INTEGER      NOT NULL IDENTITY,
  name    VARCHAR(255) NOT NULL,
  user_id INTEGER      NOT NULL,
 --FOREIGN KEY(user_id) REFERENCES USER(colaborator_id)
diff --git a/config/database/postgres/create-schemas.sql b/config/database/postgres/create-schemas.sql
index 1c52115c..308e8ac7 100644
--- a/config/database/postgres/create-schemas.sql
+++ b/config/database/postgres/create-schemas.sql
@@ -33,7 +33,7 @@ CREATE TABLE R_LABEL_MINDMAP (
   label_id         INTEGER            NOT NULL,
   PRIMARY KEY (mindmap_id, label_id),
   FOREIGN KEY (mindmap_id) REFERENCES MINDMAP (id),
-  FOREIGN KEY (label_id) REFERENCES LABEL (id)
+  FOREIGN KEY (label_id) REFERENCES LABEL (id) ON DELETE CASCADE ON UPDATE NO ACTION
 );
 
 CREATE TABLE MINDMAP (