Using MySQL and PHP.
I have two tables products and stock.
products has { productID | product | brand|}
stock has { ID | storeID | productID | qty | price }
I need to get all of the brands available at a specific store.
So here is what I have that doesn't work.
SELECT DISTINCT brand
FROM products
WHERE 'products.productID' = 'stock.productID'
AND 'stock.storeID' = 1
If I remove the compare "WHERE" it returns all of the brands.
Try
Select p.brand FROM products p, stock s
WHERE p.productID=s.productID and s.storeID='1'
SELECT DISTINCT p.brand
FROM products p inner join stock s on p.productID=s.productID
WHERE `stock.storeID` = 1
mark the diff between ` and '
try
"SELECT p.* FROM Products p
INNER JOIN stock s USING(productID)
WHERE s.storeID = '".(int)$givenID."'
GROUP BY p.brand";
我们也可以这样写
SELECT DISTINCT p.brand FROM products p , stock s where p.productID=s.productID(+) and stock.storeID = 1
Try this:
SELECT DISTINCT p.brand
FROM products p
INNER JOIN stock s
ON p.productID=s.productID
WHERE s.`storeID` = 1
This will help
select p.brand
from product p, stock s
where p.productID = s.productID
and s.storeID = 1
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