Sql 如何在MS Access中将是/否字段显示为值？

我是SQL新手，很难查询下表

像这样的事情

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我知道这里牵涉到工会，但我似乎无法让这一切顺利进行。请帮助

您可以尝试以下方法：

SELECT
    RESP_ID,
    RESP_LVL
FROM
(
    SELECT RESP_ID, 1 AS RESP_LVL FROM yourTable WHERE LEVEL1 = 'Y' UNION ALL
    SELECT RESP_ID, 2 AS RESP_LVL FROM yourTable WHERE LEVEL2 = 'Y' UNION ALL
    SELECT RESP_ID, 3 AS RESP_LVL FROM yourTable WHERE LEVEL3 = 'Y' UNION ALL
    SELECT RESP_ID, 4 AS RESP_LVL FROM yourTable WHERE LEVEL4 = 'Y' UNION ALL
    SELECT RESP_ID, 5 AS RESP_LVL FROM yourTable WHERE LEVEL5 = 'Y' UNION ALL
    SELECT RESP_ID, 6 AS RESP_LVL FROM yourTable WHERE LEVEL6 = 'Y' UNION ALL
    SELECT RESP_ID, 7 AS RESP_LVL FROM yourTable WHERE LEVEL7 = 'Y'
) t
ORDER BY
    RESP_ID,
    RESP_LVL;

---

这里我假设您的复选框由

CHAR（1）

字段支持，该字段的值为

Y

或

N

。如果没有，那么您必须稍微更改我上面使用的逻辑。

您可以尝试以下方法：

SELECT
    RESP_ID,
    RESP_LVL
FROM
(
    SELECT RESP_ID, 1 AS RESP_LVL FROM yourTable WHERE LEVEL1 = 'Y' UNION ALL
    SELECT RESP_ID, 2 AS RESP_LVL FROM yourTable WHERE LEVEL2 = 'Y' UNION ALL
    SELECT RESP_ID, 3 AS RESP_LVL FROM yourTable WHERE LEVEL3 = 'Y' UNION ALL
    SELECT RESP_ID, 4 AS RESP_LVL FROM yourTable WHERE LEVEL4 = 'Y' UNION ALL
    SELECT RESP_ID, 5 AS RESP_LVL FROM yourTable WHERE LEVEL5 = 'Y' UNION ALL
    SELECT RESP_ID, 6 AS RESP_LVL FROM yourTable WHERE LEVEL6 = 'Y' UNION ALL
    SELECT RESP_ID, 7 AS RESP_LVL FROM yourTable WHERE LEVEL7 = 'Y'
) t
ORDER BY
    RESP_ID,
    RESP_LVL;

---

这里我假设您的复选框由

CHAR（1）

字段支持，该字段的值为

Y

或

N

。如果没有，那么您必须稍微更改我上面使用的逻辑。

这是否回答了您的问题？这回答了你的问题吗？