WebMar 14, 2024 · duplicate entry '4' for key 'primary'. 这是一个数据库错误提示,意思是在插入数据时,发现已经存在一个主键为4的记录,因为主键是唯一的,所以不能插入重复的主键值。. 需要检查数据库中是否已经存在主键为4的记录,如果是,需要修改或删除该记录,如 … WebJun 16, 2024 · You're required to maintain a Primary Key in your database, which will be included as a field in your DTO. – Robert Harvey Jun 15, 2024 at 22:21 The best way is to apply a unique constraint to the database table so that no doubled entries exist... – Timothy Truckle Jun 15, 2024 at 22:30 Please review the UPDATE section of my question.
PHP :: Bug #74912 :: PDO errorInfo 1062 Duplicate entry
Webmysql 添加数据时报错1062-Duplicate entry '1' for key 'PRIMARY' 添加第三行数据时报错 解决方法: 这里我的学号设置成了主键,主键时唯一的,所以我添加的第三行数据会报错 WebMay 22, 2024 · 出现 Duplicat e entry “1“ for key “ PRIMARY “怎么解决 阳光的博客 1万+ 2,因为主键( primary )是唯一的,但我们点击刷新或运行的时候,系统就会认为我们又创建一个主键,导致出错,解决办法:我们可以输入“DELETE FROM Table_name”,delete语句是MySQL常用的删除操作,我们可以用它删除表中的所有记录,delete语句运行之 … short gray hair 2018
What will be the best practice to handle duplicate entry in DB in ...
WebMar 24, 2024 · 使用SpringDataJpa保存(save)报错误:SQL Error: 1062, SQLState: 23000 控制台会报:Duplicate entry ‘数‘ for key ‘PRIMA. 有可能是设计表时,对某一个 … WebWhile inserting a Computer/Server CI in the CMDB, either manually, via a Discovery tool, or some other import, you may see errors at the SQL level related to failure to insert the CI because it is already WebMar 17, 2024 · Description: ------------ PDOStatement->errorInfo () will have driver errors even if there is a new query that has been executed. If, for example, there is a duplicated query on the first statement it will return false and populates the errorInfo. But the next query that succeeds still has the errorInfo, only array key 1 and 2, from the ... sanitizer laced milk