我搞砸了我的where子句嗎？ 獲得意想不到的結果

Question

$active_sth = $dbh->prepare("SELECT * FROM user_campaign 
    WHERE status='blasting' 
    OR status='ready' 
    OR status='followup_hold' 
    OR status='initial_hold' 
    AND uid=:uid 
    ORDER BY status ASC");

$active_sth->bindParam(':uid', $_SESSION['uid']['id']);

$active_sth->execute();

我肯定$ _SESSION ['uid'] ['id'] = 7，但它也會提取ID 10或任何其他數字的結果。

我的AND / OR子句寫錯了嗎？

Answer 1

是的，查詢錯誤

SELECT * FROM user_campaign 
WHERE (
    status='blasting' 
    OR status='ready' 
    OR status='followup_hold' 
    OR status='initial_hold'
)
AND uid=:uid 
ORDER BY status ASC

您必須對所有OR進行分組，以確保該行獲得此值之一，並單獨檢查其是否已提供uid 。

Answer 2

正確的寫法是：

SELECT * FROM user_campaign 
WHERE status IN ('blasting', 'ready', 'followup_hold', 'initial_hold')
AND uid =: uid 
ORDER BY status ASC

您應該使用IN而不是大量的OR ：)