1.原因可能是安装vs时自带更高版本的sql server服务造成的,只需要卸载Microsoft SQL Server 2012 Express LocalDB或 Microsoft SQL Server 2012 LocalDB就行了 2.先安装vs工具,然后安装数据库工具
题干:Assume the coasting is an infinite straight line. Land is in one side of coasting, sea in the other. Each small island is a point locating in the sea side. And any radar installation, locating on the coasting, can only cover d distance, so …
2005及以上版本
-- 分页查询(通用型)
select top pageSize *
from (select row_number()
over(order by sno asc) as rownumber,*
from student) temp_row
where rownumber>((pageIndex-1)*pageSize);2012及以上版本
select * from student
orde…
获取实体属性
Type type family.GetType(); //family为实体对象
PropertyInfo[] infos type.GetProperties();
foreach (PropertyInfo info in infos){info.GetValue(family); //取值info.SetValue(bFamily, info.GetValue(family)); //赋值
}
题干:Tonio has a keyboard with only two letters, "V" and "K".
One day, he has typed out a string s with only these two letters. He really likes it when the string "VK" appears, so he wishes to change at most one let…
题干:
You are given a string consisting of parentheses () and []. A string of this type is said to be correct:(a)if it is the empty string(b)if A and B are correct, AB is correct,(c)if A is correct, (A) and [A] is correct.Write a program that ta…
题干:Bash wants to become a Pokemon master one day. Although he liked a lot of Pokemon, he has always been fascinated by Bulbasaur the most. Soon, things started getting serious and his fascination turned into an obsession. Since he is too young…
题干:Soon after he decided to design a T-shirt for our Algorithm Board on Free-City BBS, XKA found that he was trapped by all kinds of suggestions from everyone on the board. It is indeed a mission-impossible to have everybody perfectly satisfie…