02 2014 档案
摘要:Analytic functions are commonly used in data warehousing environments. In the list of analytic functions that follows, functions followed by an asteri
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摘要:一、概念介绍: Analytic functions compute an aggregate value based on a group of rows. They differ from aggregate functions in that they return multiple rows
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摘要:数据库的设计范式是数据库设计所需要满足的规范,满足这些规范的数据库是简洁的、结构明晰的,同时,不会发生插入(insert)、删除(delete)和更新(update)操作异常。反之则是乱七八糟,不仅给数据库的编程人员制造麻烦,而且面目可憎,可能存储了大量不需要的冗余信息。 范式说明 1.1 第一范式
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摘要:转自:http://blog.sina.com.cn/s/blog_8334b46001016vk5.html 在linux下启动oracle11g是报如下错误: ORA-00119: invalid specification for system parameter LOCAL_LISTENER
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摘要:以为内容选自Oracle官方文档,只讲command-line: 规范:<变量名> , {举例} , a | b 枚举可选值,(XX)描述 1、glogin.sql常用脚本(配置sqlplus command line): -- To change the SQL*Plus prompt to di
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摘要:以下内容来自oracle plsql user guide. 一 定义: The Oracle PL/SQL GOTO statement is a sequential control structure available in Oracle. The GOTO statement immedi
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