我有这两个表,并希望从ms_author中删除所有不在author中的作者。
author (160万行)
+-------+-------------+------+-----+-------+
| Field | Type | Null | Key | index |
+-------+-------------+------+-----+-------+
| id | text | NO | PRI | true |
| name | text | YES | | |
+-------+-------------+------+-----+-------+
Run Code Online (Sandbox Code Playgroud)
ms_author (1.2亿行)
+-------+-------------+------+-----+-------+
| Field | Type | Null | Key | index |
+-------+-------------+------+-----+-------+
| id | text | NO | PRI | |
| name | text | YES | | true |
+-------+-------------+------+-----+-------+
Run Code Online (Sandbox Code Playgroud)
这是我的查询:
DELETE
FROM ms_author AS m
WHERE …Run Code Online (Sandbox Code Playgroud)