Duplicate entry 86 for key primary. A primary key can also consist of multiple fields so what fields are in your key? Mar 2, 2024 · When we add a primary key to an existing table, we need to make sure that the column/s that we’re adding the primary key to contains unique values across all of its rows. PRIMARY '”，尝试插入一条数据时，主键值ID=1234，已经存在于表USER_INFO中。因为键（Primary Key）是表中的唯一标识符，每个记录必须有一个唯一的主键值，所以报错 例： Jul 23, 2013 · It isn't saying that there is a duplicate entry in the table already, it is saying that there is already one entry in there with that value for the primary key and it is refusing to insert a second for that reason. jdbc4. newInstance0(Native Method) Nov 21, 2025 · com. Rates Nov 2, 2020 · * 首先这个报错 Duplicate entry '1588162468514' for key 'PRIMARY' 是数据库报出来的 你去给数据库执行 sql 插入操作，但是已有主键存在，所以 sql 报错 Aug 25, 2020 · How to solve Duplicate entry '0' for key 'PRIMARY' in Wordpress? Ask Question Asked 5 years, 6 months ago Modified 3 years, 10 months ago Oct 20, 2025 · 文章浏览阅读1. Individual rates apply to about 300 non-standard areas. MySQLIntegrityConstraintViolationException: Duplicate entry ‘1’ for key 'PRIMARY’ 对于英语不好的我还需要百度 翻译 Mar 29, 2022 · You have two unique keys -- PRIMARY KEY(id) and UNIQUE(serial_no). reflect. A primary key can also consist of multiple fields so what fields are in your key? Sep 29, 2022 · 如果出现 duplicate entry，则该条SQL语句实现的是更新操作，影响了2条记录 注意： mysql非常的智能，如果批量插入语句，它只会对发生 duplicate entry 的记录进行update。 同时，这也带来一个隐患，只要出现 duplicate entry，所有对应记录的之都会被更新为相同的值。 Jan 21, 2016 · ERROR 1062 (23000): Duplicate entry '2147483647' for key 'PRIMARY' It's the first time I get this error maybe this suggests that some kind of limit has been reached. Nov 21, 2025 · 写了一个接口，里面用到了 MyBatis 的自增配置（ useGeneratedKeys ），写好后在使用 Test 测试时返发现报了错： Duplicate entry '0' for key 'PRIMARY'，如下图所示： 当时以为是因为之前自己自己手动在 数据库 表中插入的数据导致表数据中的数据记录条数没有被记录，把原数据删了后再次运行发现确实可以插 . fmlxh vauzki qplnnk piin xmowtt nhlatf hnaw btdmm cjce chwzys