sqlite3 unique constraint failed 是一个常见的数据库错误,表示在尝试向数据库表中插入或更新数据时,违反了表中某个字段的唯一性约束条件。在 SQLite 中,唯一性约束通常用于确保某个字段(如主键)中的每个值都是唯一的,以避免数据重复。 2. 常见场景 插入重复主键:在尝试插入一条新记录时,如果指定的主键值已经存...
#defineSQLITE_OK0/* 成功 | Successful result */ #defineSQLITE_ERROR1/* SQL错误 或 丢失数据库 | SQL error or missing database */ #defineSQLITE_INTERNAL2/* SQLite 内部逻辑错误 | Internal logic error in SQLite */ #defineSQLITE_PERM3/* 拒绝访问 | Access permission denied */ #defineSQLITE_...
1、 http://yangsm.blog.51cto.com/1065729/1427654 ODBC 错误信息:SQL Error: 1048, SQLState: 23000,数据库中有不能为空的字段
"could not execute statement due to a constaint failure (19 UNIQUE constraint failed: user.user) Any ideas what could have happened? Exactly the same code was running and working in a recent pure cordova project which I just ported to Ionic. javascript sql angularjs cordova network-programming...
执行插入操作时,出现异常constraint failed[0x1555]: UNIQUE constraint failed 意思是:sqlite 唯一约束失败 定位于某个表字段上,该字段是表的主键。 原因:插入的数据中该主键字段值在表中已有存在的记录。 解决方案:重新调整插入语句中该主键字段的值,保证约束唯一性。
52sql='''INSERT INTO '''+table_name+''' (name,price,weight) \ 53 VALUES ('apple', 2.22, 200.2 )''' IntegrityError:UNIQUEconstraintfailed: table_juzicode._id 错误原因: 1、建表时 _id字段是主键必须唯一:_id INTEGER PRIMARY KEY AUTOINCREMENT,当上述程序第1次执行时已经写入了_id=1的记录,...
Add months to GETDATE() function in sql server Add new row to datagridview one by one dynamically Add Node existing XML file Add one Column runtime to datagrid view at specific index in C# Add picture into specified Excel cell Add registry values in setup project ADD Root Node to XML in...
Description Hi, I am using a Ubuntu server and had installed the matrix-synapse-py3. The update to version 1.86.0 appeared Today and I updated it as normal (via apt). After the update the server was not getting back. I've tried to rollba...
问使用UniqueConstraint的完整性错误djangoEN实现与您类似的结果的一种方法是使user成为您的管理表单中的一个隐藏字段，然后重写ModelAdmin.get_changeform_initial_data来传递当前用户作为这个隐藏输入的值。错误
MySQL的特有语法,并不是SQL标准语法! 报错: UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-4: ordinal not in range(128) 报错: Caused by : adnroid.database.sqlite.SQLiteConstraintExcepton: UNIQUE consitraint failed : ColorBlock.id(code 1555) ...