Community Learn Tools Library Leisure
search
English
Home > Database > Mysql Tutorial > Oracle入门基础教程：rowid详解

Oracle入门基础教程：rowid详解

WBOY
Release： 2016-06-07 17:22:13
Original
1288 people have browsed it

rowid是一个用来唯一标记表中行的伪列。它是物理表中行数据的内部地址，包含两个地址，其一为指向数据表中包含该行的块所存放数据

rowid是一个用来唯一标记表中行的伪列。它是物理表中行数据的内部地址，包含两个地址，其一为指向数据表中包含该行的块所存放数据文件的地址，另一个是可以直接定位到数据行自身的这一行在数据块中的地址。

具体如下：

linux

，
Related labels：
rowid database
source：php.cn
Previous article：Oracle中的LOB数据类型以及ibatis中处理该类型的typeHandler Next article： mysql-5.6+mysql-proxy构建主从复制与读写分离
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
function_exists() cannot determine the custom function Function test () {return true;} if (function_exists ('test')) {echo "test is function...
From 2024-04-29 11:01:01
0
3
2194
How to display the mobile version of Google Chrome Hello teacher, how can I change Google Chrome into a mobile version?
From 2024-04-23 00:22:19
0
11
2341
The child window operates the parent window, but the output does not respond. The first two sentences are executable, but the last sentence cannot be implemented.
From 2024-04-19 15:37:47
0
1
1963
There is no output in the parent window document.onclick = function(){ window.opener.document.write('I am the output of the child ...
From 2024-04-18 23:52:34
0
1
1851
Where is the courseware about CSS mind mapping? Courseware
From 2024-04-16 10:10:18
0
0
1910
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template