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搜索关键字:distinct    ( 3361个结果
oracle REGEXP_SUBSTR实现字符串转列
如将字符串‘张三,李四,王五,赵六,'转换成1. 张三2.李四3.王五4.赵六REGEXP_SUBSTR查询语句:WITH TEST AS (SELECT‘张三,李四,王五,赵六,' AS STR FROM DUAL)SELECT DISTINCT REGEXP_SUBSTR(STR, '[^,]+...
分类:数据库   时间:2014-07-11 21:06:05    阅读次数:258
linq 之 Distinct的使用
1 public class Product 2 { 3 public string Name { get;set;} 4 public int Code { get; set; } 5 } 6 ...
分类:其他好文   时间:2014-07-09 17:39:41    阅读次数:182
在SELECT DISTINCT 状况下使用 Order BY Newid() 随机数选出记录
在日常作业中,有时候可能是一些活动要抽出得奖人或选出抽查的一些名单,就常常会使用到 Order BY Newid() 的方式来做随机数选出,但有可能的状况需是要搭配到 DISTINCT 来选出,这时候如 DISTINCT 与 Order By Newid()同时使用就会遇到错误讯息 「如果已指定 S...
分类:其他好文   时间:2014-07-07 00:23:21    阅读次数:286
leetcode-Subsets
SubsetsTotal Accepted:13267Total Submissions:48509My SubmissionsGiven a set of distinct integers,S, return all possible subsets.Note:Elements in a sub...
分类:其他好文   时间:2014-07-06 17:50:21    阅读次数:170
[LeetCode] N-Queens II
N-Queens IIFollow up for N-Queens problem.Now, instead outputting board configurations, return the total number of distinct solutions.solution:#includ...
分类:其他好文   时间:2014-07-06 16:06:08    阅读次数:198
leetcode--Distinct Subsequences
Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from the orig...
分类:其他好文   时间:2014-07-06 16:01:23    阅读次数:203
Climbing Stairs
You are climbing a stair case. It takes n steps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top? 有f(n) = f(n - 1) + f(n...
分类:其他好文   时间:2014-07-04 08:39:44    阅读次数:304
Leetcode Distinct Subsequences
Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from the orig...
分类:其他好文   时间:2014-07-04 00:12:20    阅读次数:249
spoj 694 求一个字符串中不同子串的个数
SPOJ Problem Set (classical) 694. Distinct Substrings Problem code: DISUBSTR Given a string, we need to find the total number of its distinct substrings. Input T- number of ...
分类:其他好文   时间:2014-07-03 16:32:42    阅读次数:212
[leetcode] Distinct Subsequences
Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from the orig...
分类:其他好文   时间:2014-07-03 13:05:28    阅读次数:210
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