Question

I am trying to export all the products and some info about them from my mySQL so I wrote the following query

SELECT * FROM products
JOIN descriptions
ON products.product_id = descriptions.product_id
JOIN category_descriptions
ON categories.category_id = descriptions.category_id

for a reason, it outputs every product four times. Can anyone help me to find out why?

Update: There are only 122 products in cscart_products. The results after this query are 488.

Answer 1

Add GROUP BY cscart_products.product_id

Your query:

SELECT * FROM cscart_products
JOIN cscart_product_descriptions
ON cscart_products.product_id = cscart_product_descriptions.product_id
JOIN cscart_products_categories
ON cscart_products.product_id = cscart_products_categories.product_id
JOIN cscart_category_descriptions
ON cscart_products_categories.category_id = cscart_category_descriptions.category_id
GROUP BY cscart_products.product_id