Setzen Sie die Spalte auf Null MySQL nicht
ALTER TABLE Person MODIFY P_Id INT(11) NOT NULL;
r00ster
ALTER TABLE Person MODIFY P_Id INT(11) NOT NULL;CREATE TABLE IF NOT EXISTS checklists (
todo_id INT AUTO_INCREMENT,
task_id INT,
todo VARCHAR(255) NOT NULL,
is_completed BOOLEAN NOT NULL DEFAULT FALSE,
PRIMARY KEY (todo_id , task_id),
FOREIGN KEY (task_id)
REFERENCES tasks (task_id)
ON UPDATE RESTRICT ON DELETE CASCADE
);
Code language: SQL (Structured Query Language) (sql)