在SQLite中,当遇到“sqlite_constraint_primarykey: a primary key constraint failed (unique constraint failed)”错误时,通常意味着你尝试插入或更新数据库表中的一行数据,而该行数据的主键值已经存在于表中,违反了主键的唯一性约束。 解释 主键约束(Primary Key Constrain
Android 数据库sqlite constraint 在Android开发中,大家开发不同项目,不同的项目就不有不同需求。但是不管是什么项目都会涉及到数据存储。比如SharePreferences,SQLite,File等方式。但是我最近开发的项目是一个有IM的项目。所以需要用到SQLite,原因是这其中的数据并不是所有数据都是在后台拉取的。也有需要自己去创建表,...
#define SQLITE_TOOBIG 18 /* 字符串或二进制数据超过限制大小 | String or BLOB exceeds size limit */ #define SQLITE_CONSTRAINT 19 /* 由于约束违例而取消 | Abort due to constraint violation */ #define SQLITE_MISMATCH 20 /* 数据类型不匹配 | Data type mismatch */ #define SQLITE_MISUSE 21 /*...
问使用Android SQLITE_CONSTRAINT_UNIQUE时代码2067 MediaStorageEN发生此错误是因为OS的机制:如果我们手动删...
问NOT NULL约束失败(代码1299 SQLITE_CONSTRAINT_NOTNULL)EN大家好，又见面了，我是你们的朋友全栈君。
sqlite> INSERT INTO company VALUES("COM1","T S LTD."); Error: UNIQUE constraint failed: company.com_id Here in the above, the first two rows have been inserted, but in the 3rd line, we forcefully tried to enter the value of com_id COM1, which already exists and this is violating...
sqlite constraint sqlite3中的约束例如以下: CREATE TABLE CheckTable (rowId integer primary key autoincrement, name text not null, address text default "China", userId text unique, age integer check(age >= 0)); sqlite3中的约束一旦创建就不能通过alter之类的语句改动。仅仅能又一次建表。
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" ...
https://sentry.io/akvo-foundation/flow-services/issues/611570271/ java.sql.SQLException: [SQLITE_CONSTRAINT] Abort due to constraint violation (columns name, parent are not unique) File "DB.java", line 383, in org.sqlite/newSQLException ...
问获得唯一约束失败:安卓演播室中的tbl_data.id (Sqlite 1555 SQLITE_CONSTRAINT_PRIMARYKEY)错误EN一、...