Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. ...
分类:
数据库 时间:
2015-05-24 08:53:01
阅读次数:
186
The childNodes property contains all of the immediate children of the element. There is a significant difference between browsers regarding the iden.....
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其他好文 时间:
2015-05-21 22:32:50
阅读次数:
206
Although the techniques described above reveal the identity of the vertics in the social graph but add noise to the relationships between them,th...
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其他好文 时间:
2015-05-21 22:18:02
阅读次数:
141
There are two main mechnisms for preserving link privacy between labeled vertices. The first approach is to perform clustering of vertices and ed...
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其他好文 时间:
2015-05-21 19:23:06
阅读次数:
98
with temptbl as (
select ROW_NUMBER () over (order by id desc )as 行号,* from news
)
select * from temptbl where 行号 between 9 and 16...
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其他好文 时间:
2015-05-21 15:34:58
阅读次数:
135
输入线段的两个短点,如果线段相交那么他们属于一个集合,查看第i条线段所在的集合有几条线段。好久没码码了,总是各种蠢。首先找出两条直线的方程,求解相交点的横坐标,然后看是不是在线段内部。没有注意题目中从1开始数,我自己写的从0开始数,各种wa。同时,又受到了杭电的输出大坑(between和fllowe...
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其他好文 时间:
2015-05-20 22:06:03
阅读次数:
144
查询条件判断select5种子句:where条件查询groupby分组having筛选orderby排序limit限制结果条数---------------------where1.运算符:<<==!=<>不等于有两种表示>=>inin(4,5)betweenbetween2000and3000取出goods_id是4和5的商品:selectgoods_id,goods_namefro..
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其他好文 时间:
2015-05-20 18:45:42
阅读次数:
108
Given an unsorted array, find the maximum difference between the successive elements in its sorted form.Try to solve it in linear time/space.Return 0 ...
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其他好文 时间:
2015-05-20 08:15:30
阅读次数:
133
The diameter of a tree (sometimes called the width) is the number of nodes on the longest path between two leaves in the tree.The diameter of a tree T...
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其他好文 时间:
2015-05-20 07:07:30
阅读次数:
129
指针与引用的区别:The difference between "pointer" and "reference"区别1: 给指针A赋值的时侯,要么赋一个地址B,要么赋一个同类型的指针C ( 使用地址B赋值时,B中存储的值的类型要和A指针指向的类型一致。如果B指向的值用const 修饰,那么指针.....
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其他好文 时间:
2015-05-20 01:59:30
阅读次数:
127