diff --git a/lsqlthw-remnants/ex12.sql b/lsqlthw-remnants/ex12.sql
new file mode 100644
index 0000000..5888b47
--- /dev/null
+++ b/lsqlthw-remnants/ex12.sql
@@ -0,0 +1,18 @@
+DROP TABLE IF EXISTS person;
+
+CREATE TABLE person (
+    id INTEGER PRIMARY KEY,
+    first_name TEXT,
+    last_name TEXT,
+    age INTEGER
+);
+
+ALTER TABLE person RENAME TO peoples;
+
+ALTER TABLE peoples ADD COLUMN hatred INTEGER;
+
+ALTER TABLE peoples RENAME TO person;
+
+.schema person
+
+DROP TABLE person;