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我正在使用MYSQL 5.7。我想要獲得最近的行不同的device_id
。我想這些查詢:錯誤1055(42000):SELECT列表的表達式#1不在GROUP BY子句中...這與sql_mode = only_full_group_by不兼容
查詢1
SELECT `table`.`id`, `table`.`device_id` FROM `table` WHERE (id IN (SELECT id FROM (SELECT * FROM table ORDER BY date_modified DESC) AS last_modified GROUP BY device_id) and device_id <> '');
+----+------------------+
| id | device_id |
+----+------------------+
| 5 | ffcecafe5eed4fba |
| 6 | ffcecafe5eed4fba |
| 8 | 71085f00e527bae0 |
+----+------------------+
3 rows in set (0.00 sec)
但它不刪除重複項。
子查詢1
SELECT id FROM (SELECT * FROM table ORDER BY date_modified DESC) AS last_modified GROUP BY device_id;
ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'last_modified.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
這給了錯誤。然後我在MySQL網站上找到使用ANY_VALUE()來刪除這個錯誤。
子查詢2
SELECT ANY_VALUE(id) FROM (SELECT * FROM table ORDER BY date_modified DESC) AS last_modified GROUP BY device_id;
+---------------+------------------+
| ANY_VALUE(id) | device_id |
+---------------+------------------+
| 7 | |
| 8 | 71085f00e527bae0 |
| 5 | ffcecafe5eed4fba |
+---------------+------------------+
3 rows in set (0.00 sec)
這是給不同的ID。但是當我在上面的查詢1中使用ANY_VALUE時,它給出了相同的結果。
如何在MySQL 5.7中查詢不同的最近行?
可能重複
MySQL 5.7 return all columns of table based on distinct column
請參閱http://meta.stackoverflow.com/questions/333952/why-should-i-provide-an-mcve-for-what-seems-to-me-to-be-a-very-simple- sql-query – Strawberry
id是你的附屬軟件嗎? –
@Strawberry我不是要求爲我做一個查詢,我得到這個錯誤ERROR 1055(42000):SELECT列表的表達式#1不在GROUP BY子句中,並且包含非聚集列'last_modified.id',這在功能上不是依賴於GROUP BY子句中的列;這是不符合sql_mode = only_full_group_by –