Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE order_items ( order_quantity INTEGER, product_id VARCHAR )
TABLE: CREATE TABLE products ( product_name VARCHAR, product_id VARCHAR )

### Question ###
Show the product name and total order quantity for each product.

### Accurate SQL ###

SELECT T1.product_name, SUM(T2.order_quantity) FROM products AS T1 JOIN order_items AS T2 ON T1.product_id = T2.product_id GROUP BY T1.product_id