2021年7月5日
The need for legislative reform on secrecy orders
摘要： The need for legislative reform on secrecy orders Editor’s Note: On June 30, Tom Burt, Corporate Vice President, Customer Security & Trust at Microsof 阅读全文
posted @ 2021-07-05 18:08 ChuckLu 阅读(55) 评论(0) 推荐(0)
Can a foreign key be NULL and/or duplicate?
摘要： Can a foreign key be NULL and/or duplicate? 问题 Please clarify two things for me: Can a Foreign key be NULL? Can a Foreign key be duplicate? As fair as 阅读全文
posted @ 2021-07-05 11:31 ChuckLu 阅读(71) 评论(0) 推荐(0)