diff --git a/apps/product-query-svc/adapters/outbound/postgres/migrations/000003_add_users_orders.down.sql b/apps/product-query-svc/adapters/outbound/postgres/migrations/000003_add_users_orders.down.sql
new file mode 100644
index 0000000..e45e329
--- /dev/null
+++ b/apps/product-query-svc/adapters/outbound/postgres/migrations/000003_add_users_orders.down.sql
@@ -0,0 +1,2 @@
+DROP TABLE IF EXISTS orders;
+DROP TABLE IF EXISTS users;
diff --git a/apps/product-query-svc/adapters/outbound/postgres/migrations/000003_add_users_orders.up.sql b/apps/product-query-svc/adapters/outbound/postgres/migrations/000003_add_users_orders.up.sql
new file mode 100644
index 0000000..a2fb184
--- /dev/null
+++ b/apps/product-query-svc/adapters/outbound/postgres/migrations/000003_add_users_orders.up.sql
@@ -0,0 +1,37 @@
+CREATE EXTENSION IF NOT EXISTS citext;
+
+CREATE TABLE IF NOT EXISTS users (
+  id BIGSERIAL PRIMARY KEY,
+  name TEXT NOT NULL,
+  email CITEXT NOT NULL UNIQUE,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Create orders table referencing users
+CREATE TABLE IF NOT EXISTS orders (
+  id BIGSERIAL PRIMARY KEY,
+  user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+  product_name TEXT NOT NULL,
+  total BIGINT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS orders_user_id_idx ON orders(user_id);
+
+-- Seed sample data
+INSERT INTO users (name, email)
+VALUES ('Alice', 'alice@example.com'),
+       ('Bob', 'bob@example.com')
+ON CONFLICT (email) DO NOTHING;
+
+INSERT INTO orders (user_id, product_name, total)
+SELECT u.id, p.product_name, p.total
+FROM users u
+JOIN (VALUES
+  ('alice@example.com', 'Starter Pack', 4999),
+  ('alice@example.com', 'Premium Pack', 19999),
+  ('bob@example.com', 'Gift Card', 2500)
+) AS p(email, product_name, total)
+  ON u.email = p.email
+LEFT JOIN orders o ON o.user_id = u.id AND o.product_name = p.product_name
+WHERE o.id IS NULL;
diff --git a/charts/product-query-svc/migrations/000003_add_users_orders.down.sql b/charts/product-query-svc/migrations/000003_add_users_orders.down.sql
new file mode 100644
index 0000000..e45e329
--- /dev/null
+++ b/charts/product-query-svc/migrations/000003_add_users_orders.down.sql
@@ -0,0 +1,2 @@
+DROP TABLE IF EXISTS orders;
+DROP TABLE IF EXISTS users;
diff --git a/charts/product-query-svc/migrations/000003_add_users_orders.up.sql b/charts/product-query-svc/migrations/000003_add_users_orders.up.sql
new file mode 100644
index 0000000..a2fb184
--- /dev/null
+++ b/charts/product-query-svc/migrations/000003_add_users_orders.up.sql
@@ -0,0 +1,37 @@
+CREATE EXTENSION IF NOT EXISTS citext;
+
+CREATE TABLE IF NOT EXISTS users (
+  id BIGSERIAL PRIMARY KEY,
+  name TEXT NOT NULL,
+  email CITEXT NOT NULL UNIQUE,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Create orders table referencing users
+CREATE TABLE IF NOT EXISTS orders (
+  id BIGSERIAL PRIMARY KEY,
+  user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+  product_name TEXT NOT NULL,
+  total BIGINT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS orders_user_id_idx ON orders(user_id);
+
+-- Seed sample data
+INSERT INTO users (name, email)
+VALUES ('Alice', 'alice@example.com'),
+       ('Bob', 'bob@example.com')
+ON CONFLICT (email) DO NOTHING;
+
+INSERT INTO orders (user_id, product_name, total)
+SELECT u.id, p.product_name, p.total
+FROM users u
+JOIN (VALUES
+  ('alice@example.com', 'Starter Pack', 4999),
+  ('alice@example.com', 'Premium Pack', 19999),
+  ('bob@example.com', 'Gift Card', 2500)
+) AS p(email, product_name, total)
+  ON u.email = p.email
+LEFT JOIN orders o ON o.user_id = u.id AND o.product_name = p.product_name
+WHERE o.id IS NULL;