UPDATE products SET category_image = 'assets/images/categories/electronics.jpg' WHERE category = 'Electronics';
UPDATE products SET category_image = 'assets/images/categories/clothing.jpg' WHERE category = 'Clothing';
UPDATE products SET category_image = 'assets/images/categories/sports.jpg' WHERE category = 'Sports';
UPDATE products SET category_image = 'assets/images/categories/home_garden.jpg' WHERE category = 'Home & Garden';
UPDATE products SET category_image = 'assets/images/categories/books.jpg' WHERE category = 'Books';