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转自: http://bbs.51testing.com/viewthread.php?tid=279799&extra=&page=1没有任何需求的情况下，如何展开性能测试工作？1、性能测试前需要做哪些准备工作？2、没有需求的情况下，如何去搜集有利的测试需求？刚好...

转自：http://blog.csdn.net/tianlesoftware/article/details/5867276 Oracle 性能相关的几个 视图 和 参数  一．性能视图    &nbs...

转自：http://blog.csdn.net/tianlesoftware/article/details/4672023 Oracle SQL的优化 SQL的优化应该从5个方面进行调整：1.去掉...

转自：http://blog.csdn.net/tianlesoftware/article/details/5833020 Oracle Hint 分类： Oracle 性能调优 2010-08-23 21:23 ...

转自：http://blog.csdn.net/tianlesoftware/article/details/5347098 Oracle 索引 详解 一．索引介绍 1.1 索引的创...

转自：http://blog.csdn.net/tianlesoftware/article/details/5826546 多表连接的三种方式详解 HASH JOIN MERGE JOIN NESTED LOOP  在多表联合查询...

转自：http://blog.csdn.net/tianlesoftware/article/details/4668723Oracle Statistic 统计信息 小结 分类： Oracle 性能调优 200...

转自：http://blog.csdn.net/tianlesoftware/article/details/5852106 Oracle 索引扫描的五种类型 分类： Oracle 高级知识 ...

转自：http://blog.csdn.net/tianlesoftware/article/details/5680706 Oracle 索引的维护 一．查看系统表中的用户索引在Oracle中，SYST...

The Oracle Database Concepts is a great resource not only if you are just getting started with Oracle, but also if you are an experienced Oracle professional and looking to review the basic concept...

转自：http://blog.csdn.net/tianlesoftware/article/details/6628232Oracle 高 Version counts 问题说明一. version count 说明            MOS上有...

转自：http://www.vmdamentals.com/?p=330The fourth part of this triptych ( ) is a customer case of hotspotting on storage. The graphs speak for themselves! Some storage design decisions they made ...

转自：http://www.vmdamentals.com/?p=328A lot of people have discovered yet another excuse why their environment is not quite performing as it should: misalignment. Ever since a VMware document sta...

转自：http://www.vmdamentals.com/?p=296In part one I covered all stuff you can think of in regards to delays and latencies you encounter on physical disk drives and solid states. Now it is time to ...

转自：http://www.vmdamentals.com/?p=266As I tackle more and more disk performance related issues, I thought it was time to create a series of blogposts about spindles, seektimes, latency and all th...

Oracle 4种Join 类型要想了解如何分析执行计划就必须先了解join 的种类及机制，下面对oracle的4中join 方法做个总结。一、查询优化器如何执行join 语句在有join的语句中优化器是如何选择执行计划的呢？优化器需要...

Oracle中的Hash Join祥解作者： fuyuncat来源： www.HelloDBA.com转自：http://www.hellodba.com/Doc/Oracle_Hash_Join.htm一、  hash join概念     hash join(HJ)是一种用于equ...

Oracle 常见的33个等待事件转自：http://blog.csdn.net/tianlesoftware/archive/2010/08/12/5807800.aspx 300) {text = text + "\r\n\n本文来自CSDN博客，转载请标明出处：" + location.href;...

ORACLE锁机制研究转自：http://blog.chinaunix.net/u2/66205/showart_527088.html锁概念基础数据库是一个多用户使用的共享资源。当多个用户并发地存取数据时，在数据库中就会产生多个事务同时存取同一数据...

Secret of oracle Logical IO: Full Table Scan: Part 2作者： fuyuncat 来源： www.HelloDBA.com Full Table Scan --- Medium Table    Then, let's involve more factors into the proce...