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Oracle中的索引详解
一、 ROWID的概念存储了row在数据文件中的具体位置:64位 编码的数据,A-Z, a-z, 0-9, +, 和 /,row在数据块中的存储方式SELECT ROWID, last_name FROM hr.employees WHERE department_id = 20;比 如:OOOOO...
分类:数据库   时间:2015-05-14 13:48:54    阅读次数:226
【Binary Tree Zigzag Level Order Traversal】cpp
题目:Given a binary tree, return thezigzag level ordertraversal of its nodes' values. (ie, from left to right, then right to left for the next level and...
分类:其他好文   时间:2015-05-14 13:35:24    阅读次数:129
SpringMVC 使用hibernate返回list
在dao中查询出来的实体 return this.dao.getListByHQL("from 类名"); 在controller中要得到这个list, List<类名> 类名首字母小写= platformOrgService.findAllOrg(); request.setAttribute("类名首字母小写", 类...
分类:编程语言   时间:2015-05-14 12:27:02    阅读次数:135
Linux环境下Tomcat运行报错java.lang.OutOfMemoryError
va.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "http-bio-8080-exec-5" java.lang.OutOfMemoryError: PermGen space 进入Tomcat中的/bin/catalina.sh? 在catalina.sh中添加如下...
分类:编程语言   时间:2015-05-14 12:26:33    阅读次数:202
leetcode | Roman to Integer
Roman to Integer : https://leetcode.com/problems/roman-to-integer/ degree: easyGiven a roman numeral, convert it to an integer.Input is guaranteed to be within the range from 1 to 3999. 罗马数字:http://zh...
分类:其他好文   时间:2015-05-14 12:16:46    阅读次数:132
leetcode - Course Schedule II
题目:leetcode Course Schedule II   There are a total of n courses you have to take, labeled from 0 to n - 1. Some courses may have prerequisites, for example to take course 0 you have ...
分类:其他好文   时间:2015-05-14 12:09:02    阅读次数:119
leetcode | Integer to Roman
问题 解析 附录罗马数字拼写规则 问题Integer to Roman : https://leetcode.com/problems/integer-to-roman/ degree : MediumGiven an integer, convert it to a roman numeral. Input is guaranteed to be within the range from 1...
分类:其他好文   时间:2015-05-14 12:03:37    阅读次数:118
sql sever 跨库查询
exec sp_configure 'show advanced options',1reconfigureexec sp_configure 'Ad Hoc Distributed Queries',1reconfigureselect * from openrowset( 'SQLOLEDB',...
分类:数据库   时间:2015-05-14 11:46:14    阅读次数:161
abap append 用法
【转自http://blog.chinaunix.net/uid-7982817-id-91999.html】Append用法总结2008-11-14 11:42:19分类:SyntaxAPPEND { wa | {INITIAL LINE} | {LINES OF jtab [FROM idx1]...
分类:移动开发   时间:2015-05-14 11:43:26    阅读次数:261
【Binary Tree Level Order Traversal II 】cpp
题目:Given a binary tree, return thebottom-up level ordertraversal of its nodes' values. (ie, from left to right, level by level from leaf to root).For ...
分类:其他好文   时间:2015-05-14 11:43:09    阅读次数:129
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