SQL查詢以獲取傳遞相同列ID時其列與其他表列不匹配的表行

Question

我有兩個桌子推車和支票。 我需要carts表的行數據，該表的orderid列和exam_name列與檢查表的order_id列和exam列不匹配，並且我正在從我的php函數傳遞userid = $id 。 這兩個表的用戶名相同

推車表：

    id |userid | username | orderid             | exam_name |
    1  |13     | Gautham  |437b310v671N888M6720 | PMP       |
    2  |13     | Gautham  |437b310v671N888M6720 | CAPM      |
    3  |13     | Gautham  |437b310v671N888M6720 | Prince2   |
    4  |14     | Rakesh   |678g310v671N888M6720 | Prince2   |

檢查表：

    id |userid | username | orderid             | exam_name |
    1  |13     | Gautham  |437b310v671N888M6720 | PMP       |
    2  |13     | Gautham  |437b310v671N888M6720 | CAPM      |

我需要carts表的行數據，該表的orderid列和exam_name列與檢查表的order_id列和exam列不匹配，並且我正在從我的php函數傳遞userid = $ id。 這兩個表的用戶名相同

    1  |13     | Gautham  |437b310v671N888M6720 | Prince2   |
    2  |14     | Rakesh   |678g310v671N888M6720 | Prince2   |

我從參考中獲取了以下sql查詢，但無法正常工作

 select c.* 
 from carts c 
 where (c.orderid, c.exam_name) not in (select ch.order_id, ch.exam 
                                        from checks ch 
                                        where ch.userid = 13)

Answer 1

 select c.* from carts c where NOT EXISTS (SELECT 1 FROM checks WHERE checks.orderid = c.orderid AND c.exam_name = checks.exam_name)
    AND C.userid = 13