Caching large objects, duplicate objects, caching collections, live objects, thread unsafe caching and other common mistakes break your app instead of...
分类:
移动开发 时间:
2014-10-31 10:04:22
阅读次数:
263
使用RMAN进行复制时,RMAN会连接目标数据库和辅助实例,如果使用了catalog备份的还会连接恢复目录。RMAN连接了目标数据库才能够访问其控制文件中记录的备份的详细信息,连接辅助实例才能够在辅助实例上分配一个或多个通道进程,9i开始会自动创建通道;要连接辅助实例就先要启动..
分类:
数据库 时间:
2014-10-29 19:33:38
阅读次数:
299
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving onlydistinctnumbers from the original list.For example,Given1->2->3-...
分类:
其他好文 时间:
2014-10-29 16:49:45
阅读次数:
220
转自网络1.po 命令:为 print object 的缩写,显示对象的文本描述(显示从对象的 description 消息获得的字符串信息)。2.print 命令:有点类似于格式化输出,可以输出对象的不同信息。3.info 命令:我们可以查看内存地址所在信息,比如 "info symbol 内存地...
分类:
其他好文 时间:
2014-10-29 16:42:44
阅读次数:
226
INSERT INTO `books `(`name`,`count`,`num`)VALUES ('windows','1','2'),('','linux','1','3')ON DUPLICATE KEY UPDATE `count` = `count` + VALUES(`COUNT`), ...
分类:
其他好文 时间:
2014-10-29 01:50:13
阅读次数:
143
启动 Eclipse 时,直接报错The JVM shared library "/Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/bin/../jre/lib/server/libjvm.dylib"does not contain the JNI_CreateJavaVM symbol.Unable to find ...
分类:
数据库 时间:
2014-10-28 13:56:41
阅读次数:
322
Dalvik Virtual Machine (good on limited hardware)Duplicate data used in class files is included only once in the .dex output, which saves space and us...
分类:
移动开发 时间:
2014-10-27 17:06:39
阅读次数:
218
SRV*c:\symbols*http://msdl.microsoft.com/download/symbols;srv*DRIVER_POWER_STATE_FAILURE (9f)A driver has failed to complete a power IRP within a spec...
分类:
数据库 时间:
2014-10-27 06:53:32
阅读次数:
401
题目:
Given a set of distinct integers, S, return all possible subsets.
Note:
Elements in a subset must be in non-descending order.The solution set must not contain duplicate subsets....
分类:
其他好文 时间:
2014-10-24 22:17:14
阅读次数:
198
Suppose a sorted array is rotated at some pivot unknown to you beforehand.
(i.e., 0 1 2 4 5 6 7 might become 4
5 6 7 0 1 2).
Find the minimum element.
You may assume no duplicate exists in...
分类:
其他好文 时间:
2014-10-24 13:06:25
阅读次数:
224