Question

对于Ex：

MY_TABLE
COL1->'P1','P2','P3'

输出应该显示P4,P5

我试过了：

select col1 from my_table where col1 not in ('p4','p5');

Answer 1

理想情况下，您应该在适当的SQL表中具有该范围的值。由于缺乏这一点，您可以使用即时CTE来保持范围：

WITH cte AS (
    SELECT 'p1' AS col1 FROM dual UNION ALL
    SELECT 'p2' FROM dual UNION ALL
    SELECT 'p3' FROM dual UNION ALL
    SELECT 'p4' FROM dual UNION ALL
    SELECT 'p5' FROM dual
)
SELECT t1.col1
FROM cte t1
LEFT JOIN my_table t2
    ON t1.col1 = t2.col1
WHERE t2.col1 IS NULL

如何显示in子句中不匹配的所有值？

1 个答案: