cell smart table scan
This is an Exadata wait event typically seen during full table scans that have been offloaded to the storage cells. This event replaces waits on "direct path read" in many cases
原创
2011-08-08 19:04:38
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This is an Exadata wait event that occurs when fast full index scans are offloaded to the storage cells. This event is related to cell smart table scan except that the object is an index.
This event
原创
2011-08-08 17:43:07
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One of the main new features associated with Exadata systems is that I/O can be offloaded to storage servers rather than be done on the database server. Each of the storage servers may get a piece of
原创
2011-08-08 16:59:39
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Smart Scan是Exadata的主要特性之一，该特性主要依赖于于Exadata Storage Software:
[oracle@database ~]$ sqlplus maclean/maclean
SQL*Plus: Release 11.2.0.2.0 Production on Sat Aug 18 22:46:39 2012
Copyrigh
原创
2012-08-19 14:32:19
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实测了以下Exadata smart scan对于INDEX STORAGE FAST FULL SCAN似乎实际并不生效，详见以下测试。不仅普通的B*tree index也包括compressed index、reverse key index等类型。
Why is my Exadata smart scan not offloading?
Exadata Smart Scan and Ind
原创
2011-11-20 13:13:59
200阅读
实测了以下Exadata smart scan对于INDEX STORAGE FAST FULL SCAN似乎实际并不生效，详见以下测试。不仅普通的B*tree index也包括compressed index、reverse key index等类型。
Why is my Exadata smart scan not offloading?
Exadata Smart Scan and Ind
原创
2011-11-20 13:13:59
227阅读
实测了以下Exadata smart scan对于INDEX STORAGE FAST FULL SCAN似乎实际并不生效，详见以下测试。不仅普通的B*tree index也包括compressed index、reverse key index等类型。
Why is my Exadata smart scan not offloading?
Exadata Smart Scan and Ind
原创
2011-11-20 13:13:59
225阅读
实测了以下Exadata smart scan对于INDEX STORAGE FAST FULL SCAN似乎实际并不生效，详见以下测试。不仅普通的B*tree index也包括compressed index、reverse key index等类型。
Why is my Exadata smart scan not offloading?
Exadata Smart Scan and Ind
原创
2011-11-20 13:13:59
315阅读
实测了以下Exadata smart scan对于INDEX STORAGE FAST FULL SCAN似乎实际并不生效，详见以下测试。不仅普通的B*tree index也包括compressed index、reverse key index等类型。Why is my Exadata smart scan not offloading?Exadata Smart Scan and Index
原创
2011-11-20 00:00:00
703阅读
实测了以下Exadata smart scan对于INDEX STORAGE FAST FULL SCAN似乎实际并不生效，详见以下测试。不仅普通的B*tree index也包括compressed index、reverse key index等类型。
Why is my Exadata smart scan not offloading?
Exadata Smart Scan and Ind
原创
2011-11-20 13:13:59
1465阅读
实测了以下Exadata smart scan对于INDEX STORAGE FAST FULL SCAN似乎实际并不生效，详见以下测试。不仅普通的B*tree index也包括compressed index、reverse key index等类型。
Why is my Exadata smart scan not offloading?
Exadata Smart Scan and Ind
原创
2011-11-20 13:13:59
282阅读
实测了以下Exadata smart scan对于INDEX STORAGE FAST FULL SCAN似乎实际并不生效，详见以下测试。不仅普通的B*tree index也包括compressed index、reverse key index等类型。
Why is my Exadata smart scan not offloading?
Exadata Smart Scan and Ind
原创
2011-11-20 13:13:59
221阅读
实测了以下Exadata smart scan对于INDEX STORAGE FAST FULL SCAN似乎实际并不生效，详见以下测试。不仅普通的B*tree index也包括compressed index、reverse key index等类型。
Why is my Exadata smart scan not offloading?
Exadata Smart Scan and Ind
原创
2011-11-20 13:13:59
314阅读
近年来，Oracle
Exadata凭借其更稳定可靠、更安全易用、更高效开放、更实时与灵活扩展等特点，被越来越多的客户应用到其各种应用场景的核心数据平台架构中。为了让更多的客户更深入地理解Exadata为大家带来的好处，Oracle近期更是开展了“揭开支撑Oracle运行的神器Exadata的美丽面纱
- 原理和实现介绍”的系列公益课（要看往期课程回放，点击下方阅读原文）。在首期的Exada
原创
2021-04-12 11:25:16
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Sessions wait on this event in Exadata when creating tablespaces, adding files to an existing tablespace or automatic expansion a data file because of DML operations, e.g. data is being loaded into a
原创
2011-08-08 17:37:39
431阅读
This is an Exadata wait event that occurs when doing incremental level 1 backups via RMAN. Exadata automatically offloads RMAN backup activities to the storage cells.
Solutions
Offloading the RMAN b
原创
2011-08-08 17:39:32
748阅读
寻道时间： 外圈，比内圈要多， 即外圈是比较快的。 第一次创建grid disk 时，是创建外圈，用于存放数据的，内圈存储归档这些数据 CellCLI> CREATE GRIDDISK ALL HARDDISK PREFIX=data, size=300G 每个盘拿出300G 用于存放data 来自
转载
2022-05-05 14:50:35
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#前端 ##JavaScript ###事件机制解释：当我们的行为动作满足了一定的事件后，会触发某类事物的执行。 作用：主要是结合了js的函数来使用。 内容： 1、单双击事件单击：onclick 当鼠标单击的时候会触发
双击：ondblclick 当鼠标双击的时候会触发2、鼠标事件onmouseover 当鼠标悬停在某个HTML元素上的时候触发
onmousemov
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2024-10-16 09:32:07
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This is an Exadata wait event that occurs when doing a restore via RMAN. Exadata automatically offloads RMAN restore activities to the storage cells.
Solutions
Offloading the RMAN restore activity t
原创
2011-08-08 19:03:27
474阅读
实现 块转 table table居中<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>没有宽度高度的盒子水平垂直居中</title> <style> .box{ width: 500px
原创
2021-07-09 15:41:13
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