diff --git a/examples/week_8/posts_and_comments/20200224T184700-create_tables.sql b/examples/week_8/posts_and_comments/20200224T184700-create_tables.sql
index c5c75a8..ffd0048 100644
--- a/examples/week_8/posts_and_comments/20200224T184700-create_tables.sql
+++ b/examples/week_8/posts_and_comments/20200224T184700-create_tables.sql
@@ -13,4 +13,5 @@ create table comments (
   body TEXT,
   author VARCHAR(30),
   FOREIGN KEY(post_id) REFERENCES posts(id)
-);
\ No newline at end of file
+);
+
diff --git a/examples/week_8/posts_and_comments/20240219_create_combined_table.sql b/examples/week_8/posts_and_comments/20240219_create_combined_table.sql
index d3bd1da..89b8c05 100644
--- a/examples/week_8/posts_and_comments/20240219_create_combined_table.sql
+++ b/examples/week_8/posts_and_comments/20240219_create_combined_table.sql
@@ -1,9 +1,10 @@
 create table posts_and_comments (
     id INTEGER PRIMARY KEY,
-    post_id INTEGER,
-    is_post BOOLEAN,
-    body TEXT,
+    old_post_id INTEGER,
+    parent_post_id INTEGER,
     slug VARCHAR(30),
-    title VARCHAR(30),
+    title VARCHAR(255) NOT NULL,
+    body TEXT,
     author VARCHAR(30)
-)
\ No newline at end of file
+);
+
diff --git a/examples/week_8/posts_and_comments/20240220_backfill_old_posts.sql b/examples/week_8/posts_and_comments/20240220_backfill_old_posts.sql
index e69de29..ae13ecf 100644
--- a/examples/week_8/posts_and_comments/20240220_backfill_old_posts.sql
+++ b/examples/week_8/posts_and_comments/20240220_backfill_old_posts.sql
@@ -0,0 +1,6 @@
+insert into posts_and_comments(
+    old_post_id,
+    slug,
+    title,
+    body
+)  select id, slug, title, body from posts;
\ No newline at end of file
diff --git a/examples/week_8/posts_and_comments/20240221_backfill_old_comments.sql b/examples/week_8/posts_and_comments/20240221_backfill_old_comments.sql
index b8f4559..92838a0 100644
--- a/examples/week_8/posts_and_comments/20240221_backfill_old_comments.sql
+++ b/examples/week_8/posts_and_comments/20240221_backfill_old_comments.sql
@@ -1,12 +1,5 @@
-insert into posts_and_comments
-(post_id,
-is_post,
-body,
-author)
-VALUES
-
-    select post_id,
-    0,
+insert into posts_and_comments (
+    parent_post_id,
     body,
     author
-    from comments;
\ No newline at end of file
+) select post_id, body, author from comments;
\ No newline at end of file
diff --git a/examples/week_8/posts_and_comments/20240222_drop_old_posts_and_comments_tables.sql b/examples/week_8/posts_and_comments/20240222_drop_old_posts_and_comments_tables.sql
index 232552b..b14cbe7 100644
--- a/examples/week_8/posts_and_comments/20240222_drop_old_posts_and_comments_tables.sql
+++ b/examples/week_8/posts_and_comments/20240222_drop_old_posts_and_comments_tables.sql
@@ -1 +1 @@
-drop table posts CASCADE;
\ No newline at end of file
+drop table posts cascade;
\ No newline at end of file
diff --git a/examples/week_8/posts_and_comments/weblog.sqlite3 b/examples/week_8/posts_and_comments/weblog.sqlite3
index 1383b8b..10adc8c 100644
Binary files a/examples/week_8/posts_and_comments/weblog.sqlite3 and b/examples/week_8/posts_and_comments/weblog.sqlite3 differ
diff --git a/examples/week_9/passwords_with_tests/passwords/__init__.py b/examples/week_9/passwords_with_tests/passwords/__init__.py
index 5e0481b..c97c17c 100644
--- a/examples/week_9/passwords_with_tests/passwords/__init__.py
+++ b/examples/week_9/passwords_with_tests/passwords/__init__.py
@@ -63,7 +63,7 @@ def signup():
         try:
             cursor.execute(query, (username, hashed))
             connection.commit()
-            return {}
+            return {}, 404
         except sqlite3.IntegrityError as e:
             template = "An exception of type {0} occurred. Arguments:\n{1!r}"
             message = template.format(type(e).__name__, e.args)