diff --git a/database/notes/07-subqueries-functions-hw.pdf b/database/notes/07-subqueries-functions-hw.pdf new file mode 100644 index 0000000..7fa50a3 Binary files /dev/null and b/database/notes/07-subqueries-functions-hw.pdf differ diff --git a/database/notes/07-subqueries-functions.pdf b/database/notes/07-subqueries-functions.pdf new file mode 100644 index 0000000..62a59b4 Binary files /dev/null and b/database/notes/07-subqueries-functions.pdf differ