Question

我的sql有问题（我对sql比较新）。我无法弄清楚为什么我会收到语法错误。任何帮助将不胜感激。

提前致谢。

SELECT *
FROM table_name_1
WHERE
column_A IN ('Lorem', 'Ipsum', 'Test') 
AND column_B NOT EXISTS
    (
    SELECT column_C 
    FROM table_name_2
    WHERE Date  >= CURDATE()
    )

Answer 1

您无法将NOT EXISTS与列值进行比较。

SELECT *
FROM table_name_1
WHERE
column_A IN ('Lorem', 'Ipsum', 'Test') 
AND NOT EXISTS
    (
    SELECT 1 
    FROM table_name_2
    WHERE Date  >= CURDATE()
    AND column_c = column_b
    )

或使用IN

SELECT *
FROM table_name_1
WHERE
column_A IN ('Lorem', 'Ipsum', 'Test') 
AND column_B NOT IN
    (
    SELECT column_C 
    FROM table_name_2
    WHERE Date  >= CURDATE()
    )

SQL帮助 - 关键字＆＃39; EXISTS＆＃39;附近的语法不正确

1 个答案: