sqlite3.IntegrityError: NOT NULL constraint failed是SQLite数据库在执行SQL语句时遇到完整性约束失败时抛出的异常。完整性约束包括唯一性约束(UNIQUE constraint)和非空约束(NOT NULL constraint)等,它们用于确保数据库中的数据满足特定的业务规则。当您尝试向定义了非空约束的列插入空
Time = new DateTime(yyyy, MM, dd, hh, mm, ss), Link = null }; db.Insertable(p).ExecuteCommand(); 抛异常 Microsoft.Data.Sqlite.SqliteException: 'SQLite Error 19: 'NOT NULL constraint failed: PhotoDetails.Link'.' 如果Link不是null var p = new PhotoDetails { Time = new DateTime(yyyy...
I am using @prisma/adapter-d1 to create a data entry, and this table has a foreign key relationship. I added "?" to the corresponding relationship in schema.prisma to make it nullable, but it keeps prompting "D1_ERROR: FOREIGN KEY constraint failed: SQLITE_CONSTRAINT" How to reproduce C...
形式如下： column_name data_type [constraint constraint_name] not null 其中，constraint constrai...
Flask报错:sqlite3.IntegrityError: NOT NULL constraint failed: step. date 报错如图 解决方法 报错如图 解决方法 开始: db=connect_db() db.execute( 'INSERT INTO walk (step) VALUES (?)', [step]) db.commit() ...
What happened? sqlite3.IntegrityError: NOT NULL constraint failed: collections.database_id Versions Python 3.11.7 it always showes for no reason chromadb.db.base.UniqueConstraintError: Collection 2e7e6778-d02f-4382-b18d-741d33044ac9 alre...
用了一段时间的 python 的 django 框架,在修改 sqlite 数据库的时候遇到如下错误:django.db.utils.IntegrityError: NOT NULL constraint failed: new__ImageRecognition_answercx.user_id 其中ImageRecognition 是 app 的名称。这个错误是发生在我在 ImageRecognition 项目下的 models.py 中的 AnswerCX 函数中使用添加...
问当我想要在文件室中存储数据时，NOT NULL约束失败EN我尝试为我的应用程序构建离线支持。下面是我运行应用程序时出现的异常错误：您将Powerstates用作@Embedded对象，而不是单独的实体。因此，从Powerstates中删除@PrimaryKey和@Entity，以及(显然)不必要的列。你最终应该会得到：
NOT NULL constraint failed: pattra_works.author_id Exception Location: D:PythonPython36-32libsite-packagesdjangodbbackendssqlite3base.py in execute, line 303 Python Executable: D:PythonPython36-32python.exe Python Version: 3.6.3 2.provider是User的外键,原先在模型中设置默认值为user[1],如何在admin...
File "C:\Users\PANDEMIC\Desktop\td10\lib\site-packages\django\db\backends\sqlite3\base.py", line 337, in execute return Database.Cursor.execute(self, query, params) django.db.utils.IntegrityError: NOT NULL constraint failed: products_product.image ...