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
但在Windows 7上,它又不同了,我只有可行的+-/*、<tab>和<enter>密钥)[ 233.313462] usb 2-2: new full-speed USBdevice number 3 using ohci_hcd[ 233.525221] usb 2-2: New USB device strings: