实验】Oracle Enterprise Linux 5.3 32Bits 环境下安装 Oracle 11g 安装文档
实验】Oracle Enterprise Linux 5.3 32Bits 环境下安装 Oracle 11g 安装文档
SORT (UNIQUE STOPKEY)/ SORT GROUP BY STOPKEY
DescriptionRemoves duplicates from sorted list of rows. Number of rows returned is restricted using the ROWNUM pseudo-columnSQL> CREATE TABLE t1 (c1 NUMBER);Table created.SQL...
How To Disable SMON tx recovery
1 parameter _smu_debug_mode=10242 SMON event 10513
Metlink:How to Configure DM-Multipathing
In this Document <a href='https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&doctype=HOWTO&id=1365511.1&addClickInfo=Goal <a href='https://support.oracle.com/CSP/main/article?cmd=...
improving performance with pipelined table functions
http://www.oracle-developer.net/display.php?id=429
query result cache in oracle 11g
http://www.oracle-developer.net/display.php?id=503query result cache in oracle 11g
library cache lock和library cache pin到底是什么
http://www.dbsnake.net/library-cache-lock-and-pin.htmllibrary cache lock和library cache pin到底是什么
专题之Undo工作原理剖析
专题之Undo工作原理剖析http://wenku.baidu.com/view/42467ed149649b6648d747c0.html
一篇ORACLE在linux上用大页内存的好文章
http://blog.chinaunix.net/space.php?uid=7249348&do=blog&id=95755一篇ORACLE在linux上用大页内存的好文章
DSI之lock学习
http://www.oracleblog.org/useful-script/study-lock-in-dsi/DSI之lock学习
彻底搞清楚library cache lock的成因和解决方法(三)
http://www.ltesting.net/ceshi/ruanjianceshikafajishu/rjcskfyy/sjk/2007/0607/19706.html彻底搞清楚library cache lock的成因和解决方法(三)
Parse_calls
1 其实parse_call的过程是再获取游标的过程2 一旦游标被cache到pga,无须再重新获取,自然是不用re-parse了 这既是软软解析了3 而这游标是否在pga里共享,都会在v$open_cursor视图里展现的4 隐士和显示游...
Oracle KSL Latch 管理层 与 Latch管理
http://www.eygle.com/archives/2009/08/oracle_ksl_latch.html
Latch Levels
http://www.itpub.net/thread-739487-1-1.html Steve Adams的书中的latch levels提到:It is very common for an Oracle process to need to hold a number of latchesconcurrently. Theref...
Crash and Instance Recovery
测试过程很清爽,学习了!不过结论我还是有些疑虑的,固然gdb和类似sola下的trace等工具是能探察oracle内核每个模块中的极个别c函数的部分功能,可是往往是内核实现一个调度和去支应相应功能是,其中调...
关于open_cursors和session_cached_cursors的参数值
http://hi.baidu.com/lichangzai/blog/item/e7eec07ec4321a330dd7dadf.html关于open_cursors和session_cached_cursors的参数值
正确设置open_cursors和'session_cached_cursors' 可以减少sql解析
http://space.itpub.net/20542911/viewspace-624681正确设置open_cursors和'session_cached_cursors' 可以减少sql解析
Why DDL will not
Only DML cursors (selects, inserts, updates, and deletes) are shared. DDL cursors arebuilt in the PGA and therefore are not shared; to be more precise, they execute withintheir own parse pha...
Why DDL will not flush relative cursor out of shared pool in 11g
Why DDL will not flush relative cursor out of shared pool in 11g
yangtingkun
http://www.itpub.net/thread-699527-2-1.html