SQL 语句,偶是菜鸟,求高手,最好带解释,谢谢,满意的会继续加分哦!!!

2025-01-07 01:08:27
推荐回答(1个)
回答1:

select selinum from table1 where selidate between '2002-2-15' and '2002-4-29' and deptno=12
ALTER TABLE table1 add No_id char(12) not null
不用解释了吧,认识英文就知道啥意思