diff --git a/04-databases/basic-sql-blog/Main.m b/04-databases/basic-sql-blog/Main.m
index dc981c7..d1738d5 100644
--- a/04-databases/basic-sql-blog/Main.m
+++ b/04-databases/basic-sql-blog/Main.m
@@ -27,7 +27,7 @@
 
   s ok=$$set^Post(1,1,1,"lorem-ipsum~Lorem ipsum~Lorem ipsum dolor sit amet, consectetuer adipiscing elit.")
   s ok=$$set^Post(2,1,1,"donec-pede-justo~Donec pede justo~Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu.")
-  s ok=$$set^Post(3,3,2,"curabitur-ullamcorper-ultricies~Curabitur ullamcorper ultricies~ Curabitur ullamcorper ultricies nisi.")
+  s ok=$$set^Post(3,3,2,"curabitur-ullamcorper-ultricies~Curabitur ullamcorper ultricies~Curabitur ullamcorper ultricies nisi.")
   s ok=$$set^Post(4,3,2,"donec-vitae-sapien~Donec vitae sapien~Donec vitae sapien ut libero venenatis faucibus. Nullam quis ante.")
 
 ; create comments
@@ -35,21 +35,13 @@
   s ok=$$set^Comment(1,1,"This is awesome! Thank you.")
   s ok=$$set^Comment(2,2,"Thank you so much for sharing this.")
 
-; fetch categories
+; fetch a category
 
   do fetch^Category(1,.data)
   w "Category fetched:",!
   w "description: ",data("description"),!
 
-  do fetch^Category(2,.data)
-  w !,"Category fetched:",!
-  w "description: ",data("description"),!
-
-  do fetch^Category(3,.data)
-  w !,"Category fetched:",!
-  w "description: ",data("description"),!
-
-; fetch posts by post
+; fetch a post
 
   do fetch^Post(1,.data)
   w !,"Post fetched:",!
@@ -57,36 +49,36 @@
   w "title: ",data("title"),!
   w "description: ",data("description"),!
 
-  do fetch^Post(2,.data)
-  w !,"Post fetched:",!
-  w "slug: ",data("slug"),!
-  w "title: ",data("title"),!
-  w "description: ",data("description"),!
+; fetch posts by category
+
+  do fetchByCategory^Post(3,.data)
+  w !,"Posts fetched by category:",!
+  s lev1=""
+  s lev2=""
+  s lev3=""
+  f  s lev1=$o(data(lev1)) q:lev1=""  d
+  . f  s lev2=$o(data(lev1,lev2)) q:lev2=""  d
+  . . f  s lev3=$o(data(lev1,lev2,lev3)) q:lev3=""  d
+  . . . w data(lev1,lev2,lev3),!
 
 ; fetch posts by user
 
   do fetchByUser^Post(1,.data)
   w !,"Posts fetched by user:",!
   s lev1=""
-  f  s lev1=$o(data(lev1)) q:lev1=""  d  w data(lev1),!
+  s lev2=""
+  s lev3=""
+  f  s lev1=$o(data(lev1)) q:lev1=""  d
+  . f  s lev2=$o(data(lev1,lev2)) q:lev2=""  d
+  . . f  s lev3=$o(data(lev1,lev2,lev3)) q:lev3=""  d
+  . . . w data(lev1,lev2,lev3),!
 
-; fetch posts by category
-
-  do fetchByCategory^Post(3,.data)
-  w !,"Posts fetched by category:",!
-  s lev1=""
-  f  s lev1=$o(data(lev1)) q:lev1=""  d  w data(lev1),!
-
-; fetch comments
+; fetch a comment
 
   do fetch^Comment(1,.data)
   w !,"Comment fetched:",!
   w "description: ",data("description"),!
 
-  do fetch^Comment(2,.data)
-  w !,"Comment fetched:",!
-  w "description: ",data("description"),!
-
 ; drop database
 
   s ok=$$drop^Database()
diff --git a/04-databases/basic-sql-blog/routines/Post.m b/04-databases/basic-sql-blog/routines/Post.m
index 0482e0e..b8ad0f9 100644
--- a/04-databases/basic-sql-blog/routines/Post.m
+++ b/04-databases/basic-sql-blog/routines/Post.m
@@ -23,28 +23,24 @@ fetchByCategory(id,data)
   s lev1=""
   s lev2=""
   s lev3=""
-  s count=1
   f  s lev1=$o(^posts(lev1)) q:lev1=""  d
   . f  s lev2=$o(^posts(lev1,lev2)) q:lev2=""  d
   . . f  s lev3=$o(^posts(lev1,lev2,lev3)) q:lev3=""  d
   . . . i lev2=id d
-  . . . . s data(count)=$get(^posts(lev1,lev2,lev3))
-  . . . . s count=count+1
+  . . . . s data(lev1,lev2,lev3)=$get(^posts(lev1,lev2,lev3))
   q
 
-fetchByUser(idUser,data)
+fetchByUser(id,data)
   k data
-  i idUser="" q 0
+  i id="" q 0
   s lev1=""
   s lev2=""
   s lev3=""
-  s count=1
   f  s lev1=$o(^posts(lev1)) q:lev1=""  d
   . f  s lev2=$o(^posts(lev1,lev2)) q:lev2=""  d
   . . f  s lev3=$o(^posts(lev1,lev2,lev3)) q:lev3=""  d
-  . . . i lev3=idUser d
-  . . . . s data(count)=$get(^posts(lev1,lev2,lev3))
-  . . . . s count=count+1
+  . . . i lev3=id d
+  . . . . s data(lev1,lev2,lev3)=$get(^posts(lev1,lev2,lev3))
   q
 
 set(id,idCategory,idUser,data)