sqlite_constraint_notnull错误的含义 sqlite_constraint_notnull错误是SQLite数据库在执行SQL操作时遇到的一种约束错误,表示尝试向一个定义了NOT NULL约束的列中插入了NULL值。在SQLite中,NOT NULL约束用于确保某列不接受空值(NULL),如果尝试违反这一约束,SQLite将抛出SQLITE_CONSTRAINT_NOTNULL错误。
形式如下： column_name data_type [constraint constraint_name] not null 其中，constraint constrai...
2021-06-01 01:28:36.051 25286-25286/com.sample.android.qapital E/BaseViewModel$sendRequest: android.database.sqlite.SQLiteConstraintException: NOT NULL constraint failed: goals.primaryKey (code 1299 SQLITE_CONSTRAINT_NOTNULL) at android.database.sqlite.SQLiteConnection.nativeExecuteForLastInsertedRowId(N...
一、默认约束 create table 默认约束( -> name VARCHAR(10), -> age INT UNSIGNED DEFAULT 18 -> ); 插入指定name...(20), ###插入字符长20的name -> sale INT NOT NULL, ###插入非空的字符串 -> year INT NOT NULL DEFAULT 2022 ###...插入非空的字符串,默认值为2022 -> ); 省...
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, xx[0], xx[1], xx[2], xx[3], xx[4]), Ac...
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" ...
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...
Regarding the constraint, to column is set as INTEGER NOT NULL, but because of SQLite's dynamic typing system (something I forget about), empty strings can be passed into INTEGER columns as they are technically not null. Now if a non numeric text would have made it into an INTEGER field...
SQLite is not meant to allow that, with the existance of the journal/shared-memory files acting as a mutex. If it actually did happen, and you're not violating anything in the following document, then either you found a bug in SQLite, or you had hardware problems. ...