如何在mysql中找到多列中具有相同值的行

有一个表包含972561行（记录）和8列（属性）。格式如下所示：

+--------------+------+-------------+------------+--------------+-----------+-----------+-------------+
| PREDICATE_ID | PMID | SENTENCE_ID | SUBJECT_ID | SUBJECT_NAME | PREDICATE | OBJECT_ID | OBJECT_NAME |
+--------------+------+-------------+------------+--------------+-----------+-----------+-------------+

我想过滤主语、谓语和宾语值只出现一次的录音。例如，一个表中有四个录音。应将最后一次录制从结果中排除，因为（Bob，is_a，Person）只出现一次

+--------------+------+-------------+------------+--------------+-----------+-----------+-------------+
| PREDICATE_ID | PMID | SENTENCE_ID | SUBJECT_ID | SUBJECT_NAME | PREDICATE | OBJECT_ID | OBJECT_NAME |
+--------------+------+-------------+------------+--------------+-----------+-----------+-------------+
| 1            | 100  | 1           | 2          | Bob          | is_born_in| 3         | 1994        |
+--------------+------+-------------+------------+--------------+-----------+-----------+-------------+
| 1            | 103  | 3           | 2          | Bob          | is_born_in| 3         | 1994        |
+--------------+------+-------------+------------+--------------+-----------+-----------+-------------+
| 1            | 102  | 5           | 2          | Bob          | is_born_in| 3         | 1994        |
+--------------+------+-------------+------------+--------------+-----------+-----------+-------------+
| 2            | 104  | 2           | 2          | Bob          | is_a      | 4         | Person      |
+--------------+------+-------------+------------+--------------+-----------+-----------+-------------+

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任何帮助都将不胜感激

使用聚合，我们可以尝试：

SELECT t1.*
FROM yourTable t1
INNER JOIN
(
    SELECT SUBJECT_ID, PREDICATE_ID, OBJECT_ID
    FROM yourTable
    GROUP BY SUBJECT_ID, PREDICATE_ID, OBJECT_ID
    HAVING COUNT(*) > 1
) t2
    ON t1.SUBJECT_ID = t2.SUBJECT_ID AND
       t1.PREDICATE_ID = t2.PREDICATE_ID AND
       t1.OBJECT_ID = t2.OBJECT_ID;

如果您使用的是MySQL 8+，我们可以利用分析功能实现更简洁的查询：

WITH cte AS (
    SELECT *, COUNT(*) OVER (PARTITION BY BY SUBJECT_ID, PREDICATE_ID, OBJECT_ID) cnt
    FROM yourTable
)

SELECT *
FROM cte
WHERE cnt > 1;

---

过滤或删除，如您希望从查询结果中排除它们，或完全从表中删除它们？我希望排除它们@MichaelNovello为什么一个表要同时存储主语id和主语-谓词和宾语也是如此！？！？！？您从哪里获得

t2

？看起来他只是在用一张桌子，我在用。它似乎起作用了。因为桌上有太多的录音，所以需要时间。将在结果返回后接受它。非常感谢。