ORACLE PL/SQL编程之八:把触发器说透本篇主要内容例如以下:8.1 触发器类型8.1.1 DML触发器8.1.2 替代触发器8.1.3 系统触发器8.2创建触发器8.2.1 触发器触发次序8.2.2 创建DML触发器8.2.3 创建替代(INSTEAD OF)触发器8.2.3 创建系统事件...
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数据库 时间:
2014-08-20 15:48:42
阅读次数:
378
Similar strategy could be applied to 4Sum, as 2sum to 3sum, but that'll be O(n^3). Instead of 3 + 1, we can also divide it into 2 + 2. So the problem ...
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其他好文 时间:
2014-08-18 13:00:32
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183
Follow up for N-Queens problem.
Now, instead outputting board configurations, return the total number of distinct solutions.
public class Solution {
public int totalNQueens(int n) {
...
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其他好文 时间:
2014-08-18 10:49:54
阅读次数:
206
leetcode上有两个关于n皇后的问题,两个题目基本是一样的,只是第二个是把所有的排法求出来。n皇后最简单的就是用递归,每次判断一行的一个位置,如果合法,就判断下一行,不合法再判断下一个位置
N-Queens II
Follow up for N-Queens problem.
Now, instead outputting board configuration...
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其他好文 时间:
2014-08-11 15:06:12
阅读次数:
227
最近升级到Cocos2d-x 3.2正式版,iOS程序编译没任何问题,结果使用cocos compile -p android编译生成APK程序,结果悲剧了,出现以下错误。Android NDK: Invalid APP_STL value: c++_static Android NDK: Please use one of the following instead: system st...
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移动开发 时间:
2014-08-10 10:25:20
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302
一 Words 1 think through 充分考虑 schoolwork 功课,学业 2 only to 结果却 eg. Or we will solve one problem only to have to deal with another instead. 3 tutor 导师,家庭教...
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其他好文 时间:
2014-08-05 09:24:48
阅读次数:
277
安装opesntackmysql报错ERROR:ErrorappearedduringPuppetrun:192.168.1.103_mysql.ppError:mysqladmin-urootpassword‘f40e1dec1deb43d3‘returned1insteadofoneof[0]#rpm-qa|grep-imysqlmysql-server-5.1.71-1.el6.x86_64perl-DBD-MySQL-4.013-3.el6.x86_64mysql-5.1.71-1.el6.x..
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数据库 时间:
2014-08-05 03:08:29
阅读次数:
244
Understand limitations of floating point representations.Never check for equality with ==. Instead, check if the difference is less than an epsilon va...
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其他好文 时间:
2014-08-04 14:13:17
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235
Providingastaticmethodinsteadofapublicconstructorhasbothadvantagesanddisadvantages.Oneadvantageofstaticfactorymethodsisthat,unlikeconstructors,theyhavenames.ASecondadvantageofstaticfactorymethodsisthat,unlikeconstructors,theyarenotrequiretocreateanewobjecte..
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编程语言 时间:
2014-07-30 17:54:24
阅读次数:
215
WARN hdfs.DFSClient: DataStreamer Exception: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /input/LICENSE.txt could only be replicated to 0 nodes, instead of 1
at org.apache...
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其他好文 时间:
2014-07-29 18:13:22
阅读次数:
227