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Merge into的使用详解-你Merge了没有【转】
Merge是一个非常有用的功能,类似于Mysql里的insert into on duplicate key.Oracle在9i引入了merge命令,通过这个merge你能够在一个SQL语句中对一个表同时执行inserts和updates操作. 当然是update还是insert是依据于你的指定的条...
分类:其他好文   时间:2015-08-11 16:08:35    阅读次数:98
leetcode 217 Contains Duplicate 数组中是否有重复的数字
Contains Duplicate Total Accepted: 26477 Total Submissions: 73478 My Submissions Given an array of integers, find if the array contains any duplicates. Your function should retu...
分类:编程语言   时间:2015-08-09 22:35:58    阅读次数:146
Curse of Dimensionality
Curse of DimensionalityCurse of Dimensionality refers to non-intuitive properties of data observed when working in high-dimensional space *, specifica...
分类:其他好文   时间:2015-08-09 20:28:01    阅读次数:173
(medium)LeetCode 220.Contains Duplicate III
Given an array of integers, find out whether there are two distinct indicesiandjin the array such that the difference betweennums[i]andnums[j]is at mo...
分类:其他好文   时间:2015-08-09 14:00:09    阅读次数:145
Leetcode解题笔记-Contains Duplicate && Contains Duplicate II&&Contain Duplicate III
Contain Duplicate 题目要求:给定一个数组如果有重复就返回true,如果没有就返回false个人分析:这个题比剔除重复的要简单许多,只需要判断就好代码如下: public static boolean containsDuplicate(int[] nums){ if (num...
分类:其他好文   时间:2015-08-09 07:10:34    阅读次数:109
LeetCode(82)题解: Remove Duplicates from Sorted List II
https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii/题目:Given a sorted linked list, delete all nodes that have duplicate numbers, leavi...
分类:其他好文   时间:2015-08-08 17:52:17    阅读次数:115
004串重量 (keep it up)
设计算法并写出代码移除字符串中反复的字符,不能使用额外的缓存空间。注意: 能够使用额外的一个或两个变量,但不同意额外再开一个数组拷贝。简单题直接上代码:#include #include void remove_duplicate(char vStr[]){ int Len = strlen(vSt...
分类:其他好文   时间:2015-08-08 16:09:25    阅读次数:100
Duplicate Emails
Write a SQL query to find all duplicate emails in a table namedPerson.+----+---------+| Id | Email |+----+---------+| 1 | a@b.com || 2 | c@d.com |...
分类:其他好文   时间:2015-08-08 11:42:01    阅读次数:132
Oracle学习之DATAGUARD(十) 在同台机器上使用11g rman新特性创建DG
首先使用dbca建立一个数据库,db_name=primary。2.为两个数据库准备静态监听。及连接彼此的TNSNAME11gdg1->catlistener.oratnsnames.ora #listener.oraNetworkConfigurationFile:/u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora #GeneratedbyOracleconfigu..
分类:数据库   时间:2015-08-08 06:53:15    阅读次数:203
(leetcode)Contains Duplicate II
Given an array of integers and an integerk, find out whether there there are two distinct indicesiandjin the array such thatnums[i] = nums[j]and the d...
分类:其他好文   时间:2015-08-07 12:59:08    阅读次数:97
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