[英]UPDATE table and SET column based on condition
This is how my code looks now: 这是我的代码现在的样子:
$stmt = $link->prepare("UPDATE product SET product_price_lowest = $adPrice WHERE product_id = $prodId");
$stmt->execute();
I want to SET product_price_lowest TO $adPrice only: 我想设置 product_price_lowest 仅 $ adPrice:
IF $adPrice < product_price_lowest 如果 $ adPrice < product_price_lowest
How can I do this? 我怎样才能做到这一点?
Then add that to WHERE
clause as well like 然后将其添加到
WHERE
子句中
WHERE product_id = $prodId
AND $adPrice < product_price_lowest
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