我试图在以下两个表之间创建一个外键:
id (PK,null,unique,AI)..。(没有约束的其他列)
id (pk,null,unique,AI)..。student (student_number) ON DELETE CASCADE ON UPDATE CASCADE;错误1452 (23000):无法添加或更新子行:外键约束失败
输出参考(最后一个论点)我将books_to_files映射缩写为只包含几个不同单词长度的书籍示例。1, mhc1.txtActs of the Apostles 3:3-9 Acts of the Apostles, 3:3-9, mhc6.txtuse std::env;
use std::collections::Hash