2016年10月6日
SQL Constraint/Index
摘要： 1、SQL Constraint Integrity Constraints are used to apply business rules for the database tables. The constraints available in SQL are Foreign Key, Not 阅读全文
posted @ 2016-10-06 16:58 xiulug 阅读(234) 评论(0) 推荐(0)
英语中的 姓氏/Surname
摘要： 、 "Chomsky" ) (Belarusian: Хомскі, Russian: Хомский, Ukrainian: Хомський, Hebrew: חומסקי‎‎, "from (Vyoska) Khomsk (nearby Brest, now Belarus)") is a s 阅读全文
posted @ 2016-10-06 08:07 xiulug 阅读(1633) 评论(0) 推荐(0)