处理CHECK约束条件失败的异常 当遇到android.database.sqlite.SQLiteConstraintException: CHECK constraint failed异常时,我们可以通过以下几种方式来处理: 1.检查数据是否符合CHECK约束条件 首先,我们应该检查要插入或修改的数据是否满足CHECK约束条件。如果不满足条件,我们需要修正数据或者更改CHECK约束条件。 2.捕获异常并进...
Class,Age,Grade)values('ZHANG SAN','9','16',10);//successINSERTINTOStudent(Name,Class,Age,Grade)values('ZHANG SAN','10','16',10);//successINSERTINTOStudent(Name,Class,Age,Grade)values('ZHANG SAN','10','16',10);//Error:UNIQUEconstraintfailed: Student.Name, Student.Class...
Age integerCHECK(Age>22));sqlite>.tablesTeacherssqlite>INSERT INTO Teachers(Age) VALUES(45);sqlite>INSERT INTO Teachers(Age) VALUES(33);sqlite>INSERT INTO Teachers(Age) VALUES(23);sqlite>INSERT INTO Teachers(Age) VALUES(21);Error: constraint failedsqlite>...
Age integer CHECK(Age>22));sqlite>.tablesTeacherssqlite>INSERT INTO Teachers(Age) VALUES(45);sqlite>INSERT INTO Teachers(Age) VALUES(33);sqlite>INSERT INTO Teachers(Age) VALUES(23);sqlite>INSERT INTO Teachers(Age) VALUES(21);Error: constraint failedsqlite>...
Error: CHECK constraint failed: item sqlite> INSERT INTO item VALUES("ITM3","Crack-Munch",110); Error: CHECK constraint failed: item Here in the first insertion in item table on problem arise but in the second and the third insertion error been occur, because in the second insertion, the...
Error: UNIQUE constraint failed: ntbl.addr 查看对 score 的约束: sqlitea insert into ntbl(score) values (-20); Error:CHECK constraint failed:ntbl 假如addr、score 都不对: sqlite> insert into ntbl(addr , score) values( "bj",-20); ...
print(f"CHECK constraint failed: {e}") The CHECK constraint enforces that price must be greater than 0. The second insert attempts to set a negative price, which violates this rule. CHECK constraints are powerful for enforcing business rules at the database level, ensuring invalid data can'...
sqlite3.IntegrityError: UNIQUE constraint failed: cameras.camera_id 错误表明在尝试向 cameras 表中插入数据时,违反了 camera_id 字段的唯一性约束。这通常意味着你试图插入一个已经存在于该字段中的值。 2. 检查数据库中是否已存在具有相同 camera_id 的记录 要检查数据库中是否已存在具有相同 camera_id 的记录...
We look at the definition of the Orders table. We see a CHECK constraint imposed on the OrderPrice column. Naturally, the price of an order must be a positive value. sqlite> INSERT INTO Orders(OrderPrice, Customer) VALUES(-10, 'Johnson'); Error: constraint failed If we try to insert ...
android.database.sqlite.SQLiteConstraintException: UNIQUE constraint failed: weightDataTable.date (code 1555 SQLITE_CONSTRAINT_PRIMARYKEY) at android.database.sqlite.SQLiteConnection.nativeExecuteForLastInsertedRowId(Native Method) at android.database.sqlite.SQLiteConnection.executeForLastInsertedRowId(SQLiteConne...