diff --git a/.zk/notebook.db b/.zk/notebook.db
index 429d865..273ff86 100644
Binary files a/.zk/notebook.db and b/.zk/notebook.db differ
diff --git a/zk/DynamoDB.md b/zk/DynamoDB.md
index be77ae7..e2b9e26 100644
--- a/zk/DynamoDB.md
+++ b/zk/DynamoDB.md
@@ -13,7 +13,9 @@ Data is stored as a table of key-value pairs. This doesn't mean there are single
 values corresponding to each key. There can be multiple columns for each key and
 the key itself is also a column.
 
-DynamoDB is "NoSQL" because it does not support
+DynamoDB is "NoSQL" because it does not support #SQL queries and is
+non-relational meaning there cannot be JOIN operations via
+[foreign_keys](Foreign_keys_in_SQL.md)
 
 ## Usage