MySQL - 嵌套在條件下

Question

我想從數據表中刪除多條記錄。問題是，如果我需要刪除3個存款記錄，我不僅需要查找「存款」關鍵字，還需要查找「餘額」關鍵字。

TABLE Report: 
-------------------------------------------------------------------------------------- 
| report_id action_id action_name balance received given item_name total| 
-------------------------------------------------------------------------------------- 
| 1   1  Balance   0  10  0  Gold   10 | 
| 2   2  Deposit   10  10  0  Gold   20 | 
| 3   3  Deposit   20  10  0  Gold   30 | 
| 4   4  Balance   0  5  0  Silver  5 | 
| 5   5  Deposit   5  5  0  Silver  10 | 
| 6   6  Deposit   10  5  0  Silver  15 | 
| 7   1  Withdraw   30  0  10  Gold   20 | 
    ..  ..... 

我有這樣一段代碼：

... 
// Empty array for keys (action_id, action_name) 
$tempArray = array(); 

// Generates string like: '(?,"Deposit"),(?,"Deposit")' 
$var = implode(',', array_fill(0,count($tempArray), '(?,"Deposit")')); 

// Generates query like: DELETE FROM Report WHERE (action_id, action_name) IN ((?,"Deposit"),(?,"Deposit")) 
$sql = "DELETE FROM Report WHERE (action_id, action_name) IN (".$var.")"; 

try{ 

$db = getConnection(); 
$stmt = $db->prepare($sql); 
$result = $stmt->execute(array_values($tempArray)); 
... 

我所試圖做的事：

... 
// Generate string like: '(?,"Deposit" OR "Balance"),(?,"Deposit" OR "Balance")' 
$var = implode(',', array_fill(0,count($tempArray), '(?,"Deposit" OR "Balance")')); 

// Generate query like: DELETE FROM Report WHERE (action_id, action_name) IN ((?,"Deposit" OR "Balance"),(?,"Deposit" OR "Balance")) 
$sql = "DELETE FROM Report WHERE (action_id, action_name) IN (".$var.")"; 

我想，也許這可能是工作：

... 
// Generate string like: '(?,"Deposit","Balance"),(?,"Deposit","Balance")' 
$var = implode(',', array_fill(0,count($tempArray), '(?,"Deposit","Balance")')); 

// Generate query like: DELETE FROM Report WHERE (action_id, action_name,action_name) IN ((?,"Deposit","Balance"),(?,"Deposit","Balance")) 
$sql = "DELETE FROM Report WHERE (action_id, action_name,action_name) IN (".$var.")"; 

任何歡迎指導。

Answer 1

編輯

更新我的答案，因爲現在很明顯，action_id不是唯一的。

您可以修改您的查詢是這樣的：

$var = implode(',', array_fill(0, count($tempArray), '?')); 
$sql = "DELETE FROM Report WHERE action_id IN ($var) ". 
     "AND action_name IN ('Deposit', 'Balance')"; 

$db = getConnection(); 
$stmt = $db->prepare($sql); 
$result = $stmt->execute(array_values($tempArray));