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修改Oracle最大连接数和会话数

ORACLE最大连接数的问题:[url]http://www.jb51.net/article/19317.htm[/url]Oracle默认的最大连接数为100,会话数为60,有时候我们需要更新百万级的数据,需要获取比100更多的连接数和比60更多的会话数,这是可以修改Oracle最大连接数和会话数。[size=medium][b]1.查看最大连接数[/b][/size][code...

2017-05-04 11:49:00

ORA-01652: unable to extend temp segment by 128 in tablespace TEMP解决办法

解决ora-01652无法通过128(在temp表空间中)扩展temp段的过程:[url]http://www.cnblogs.com/cyl048/p/5984128.html[/url]在数据库更新130万数据时,出现ORA-01652:unabletoextendtempsegmentby128intablespaceTEMP,出现这个的原因,是以为临时表空间已经占满...

2017-05-04 11:27:08

SocketChannelImpl 解析二(发送数据后续)

SocketChannelImpl解析一(通道连接,发送数据):[url]http://donald-draper.iteye.com/blog/2372364[/url][size=medium][b]引言:[/b][/size]上一篇文章我们看了一下SocketChannelImpl的初始化,通道连接(Socket),写操作(write-ByteBuffer)。先回顾一下:Soc...

2017-05-04 08:42:43

SocketChannelImpl 解析一(通道连接,发送数据)

ThreadLocal解析:[url]http://donald-draper.iteye.com/blog/2368159[/url]JavaNIOByteBuffer详解:[url]http://donald-draper.iteye.com/blog/2357084[/url]DirectByteBuffer简介:[url]http://donald-draper.iteye....

2017-05-03 09:09:31

DirectByteBuffer简介

JavaNIOByteBuffer详解:[url]http://donald-draper.iteye.com/blog/2357084[/url]MappedByteBuffer定义:[url]http://donald-draper.iteye.com/blog/2371594[/url]Reference定义(PhantomReference,Cleaner):[url]http...

2017-05-02 23:25:26

Reference定义(PhantomReference,Cleaner)

JavaNIOByteBuffer详解:[url]http://donald-draper.iteye.com/blog/2357084[/url]MappedByteBuffer定义:[url]http://donald-draper.iteye.com/blog/2371594[/url]整理Java引用(Reference)的概念:[url]https://www.osch...

2017-04-28 17:24:46

MappedByteBuffer定义

JavaNIOByteBuffer详解:[url]http://donald-draper.iteye.com/blog/2357084[/url][size=medium][b]引言:[/b][/size]在上一篇文章中我们看了HeapByteBuffer,今天来看另外一个DirectByteBuffer。在看DirectByteBuffer之前,我们先来看一下DirectByteB...

2017-04-28 11:05:08

tomcat日志及log4j日志乱码

Linux系统字符编码:[url]http://www.cnblogs.com/zhzhao/p/4516997.html[/url]linxu配置文件:[url]http://blog.chinaunix.net/uid-14735472-id-4305151.html[/url]一般在我们在windows开发程序时用GBK编码格式在windows系统上可以显示,但到了Linux环境...

2017-04-26 15:00:49

SocketChannel接口定义

Channel接口定义:[url]http://donald-draper.iteye.com/blog/2369111[/url]AbstractInterruptibleChannel接口定义:[url]http://donald-draper.iteye.com/blog/2369238[/url]SelectableChannel接口定义:[url]http://donald-dr...

2017-04-25 23:08:07

SQL Server大表数据的导出与导入命令BCP

SQLServer备份还原命令Sqlcmd,osql,iSql使用:[url]http://lzh166.iteye.com/blog/1123995[/url]SQLServerBCP使用小结:[url]http://www.cnblogs.com/qanholas/archive/2011/07/05/2098616.html[/url]上面的文章已将有相关命令的使用,我...

2017-04-24 23:07:51

ByteChannel,分散聚集通道接口的定义(SocketChannel)

Channel接口定义:[url]http://donald-draper.iteye.com/blog/2369111[/url]AbstractInterruptibleChannel接口定义:[url]http://donald-draper.iteye.com/blog/2369238[/url]SelectableChannel接口定义:[url]http://donald-dr...

2017-04-24 22:35:03

ServerSocketChannelImpl解析

Channel接口定义:[url]http://donald-draper.iteye.com/blog/2369111[/url]AbstractInterruptibleChannel接口定义:[url]http://donald-draper.iteye.com/blog/2369238[/url]SelectableChannel接口定义:[url]http://donald-dr...

2017-04-23 23:13:30

WindowsSelectorImpl解析二(选择操作,通道注册,通道反注册,选择器关闭等)

WindowsSelectorImpl解析一(FdMap,PollArrayWrapper):[url]http://donald-draper.iteye.com/blog/2370811[/url][url][b]引言:[/b][/url]上一篇文章我们简单看了一下的WindowsSelectorImpl内部集合和变量及同步锁的定义,先来回顾下,WindowsSele...

2017-04-23 14:50:36

WindowsSelectorImpl解析一(FdMap,PollArrayWrapper)

Channel接口定义:[url]http://donald-draper.iteye.com/blog/2369111[/url]AbstractInterruptibleChannel接口定义:[url]http://donald-draper.iteye.com/blog/2369238[/url]SelectableChannel接口定义:[url]http://donald-dr...

2017-04-22 20:31:51

SelectorImpl分析

Channel接口定义:[url]http://donald-draper.iteye.com/blog/2369111[/url]AbstractInterruptibleChannel接口定义:[url]http://donald-draper.iteye.com/blog/2369238[/url]SelectableChannel接口定义:[url]http://donald-dr...

2017-04-20 23:29:21

AbstractSelector定义

Channel接口定义:[url]http://donald-draper.iteye.com/blog/2369111[/url]AbstractInterruptibleChannel接口定义:[url]http://donald-draper.iteye.com/blog/2369238[/url]SelectableChannel接口定义:[url]http://donald-dr...

2017-04-20 08:17:09

Selector定义

Channel接口定义:[url]http://donald-draper.iteye.com/blog/2369111[/url]AbstractInterruptibleChannel接口定义:[url]http://donald-draper.iteye.com/blog/2369238[/url]SelectableChannel接口定义:[url]http://donald-dr...

2017-04-19 12:55:11

FileDescriptor定义

SelectionKey定义:[url]http://donald-draper.iteye.com/blog/2369499[/url]在上面一篇文章中,我们看了SelectionKey,AbstractSelectionKey及SelectionKeyImpl的定义在SelectionKeyImpl的实现中,我们看到key关联的通道实际为SelChImpl,而SelChImpl定义...

2017-04-19 08:40:22

ServerSocketChannel定义

Channel接口定义:[url]http://donald-draper.iteye.com/blog/2369111[/url]AbstractInterruptibleChannel接口定义:[url]http://donald-draper.iteye.com/blog/2369238[/url]SelectableChannel接口定义:[url]http://donald-dr...

2017-04-18 14:16:47

NetworkChannel接口定义

Channel接口定义:[url]http://donald-draper.iteye.com/blog/2369111[/url]AbstractInterruptibleChannel接口定义:[url]http://donald-draper.iteye.com/blog/2369238[/url]SelectableChannel接口定义:[url]http://donald-dr...

2017-04-18 08:57:19

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