oracle数据库的相关内容

文章 2013-10-23 来自：开发者社区

ORACLE数据库各个版本PATCH

Oracle数据库的各个版本的补丁号，希望对大家的工作能够有所帮助 Patchset / PSU Patch Number 11.2.0.1.1 9352237 11.1.0.7.3 &n...

文章 2013-10-22 来自：开发者社区

Oracle数据库imp命令导入时1659错误处理

今儿在自己电脑上搭建开发环境，在给数据库导入表结构以及数据时报1659错误，错误内容如下： IMP-00017: 由于 ORACLE 错误 1659, 以下语句失败:         "CREATE TABLE "T_DATA_KKCL" ………… IMP-00003: 遇到 ORACLE 错误 1659ORA-01659: 无...

文章 2013-09-30 来自：开发者社区

认识Oracle/SQL Server的免费数据库

认识Oracle/SQL Server的免费数据库像Oracle和SQL Server等大型数据库也存在免费版，能满足很多中小项目的需求。但由于很多做项目的同志不清楚，以至于动不动就选择MySQL、PostgreSQL或者Firebird等开源数据库。另外，选择大型数据库的免费版还有很多好处。比如，在项目设计、开发阶段，完全可以用免费版的数据库进行开发和测试，...

文章 2013-09-26 来自：开发者社区

oracle数据库总结

数据库概念 oracle数据库一组：数据文件、控制文件、日志文件 oracle实例，它与数据库的关系 oracle实例：实例就是数据库启动后分配的内存和建立的后台进程. 数据库关闭后,物理上的文件还存在,但实例(分配的内存和建立的进程)就没有了数据库：物理操作系统文件或磁盘（disk）的集合。关系：实例就是一组操作系统进程（或者是一个多线程的进程）以及一些内存。这些进程可以操作...

文章 2013-09-24 来自：开发者社区

关于Oracle数据库中SQL空值排序的问题

在Oracle中进行查询排序时，如果排序字段里面有空值的情况下，排序结果可能会达不到自己想要的结果。如 select * from tableTest order by VISITS desc 上图可以看到表示服务访问次数的“VISITS”字段上的空值记录排序时放在前面，和实际逻辑不对将原来的sql语句改写为：select * from tableTe...

文章 2013-09-21 来自：开发者社区

修改Oracle数据库的连接数

测试了这个，不错。　　摘(一) 　　1. 查看processes和sessions参数　　SQL> show parameter processes 　　NAME TYPE VALUE 　　db_writer_processes integer 1 　　gcs_server_processes integer 0 　　job_queue_processes integer 10 　　l....

文章 2013-09-19 来自：开发者社区

如果Linux或Unix平台，安装了Oracle，而且有root账号，则使用“su Oracle安装账户”的方式，sqlplus登录到数据库，这种方式是最可靠的。正如@dbsnake所说，”主要是Oracle软件过于复杂，很多功能、脚本都是只能以Oracle软件的安装用户来执行才可以。当然，Oracle软件的安装用户不一定是Oracle，可以是任意的名字（如ora11g等），但关键是要以这个用户....

文章 2013-09-16 来自：开发者社区

java连接Oracle数据库获取数据

一直弄.NET开发，这次由于项目需要，需要对一个使用Java开发的短信平台进行二次开发，然后第一天就用eclipse来连接Oracle数据获取数据，这期间遇到一个问题，就是Oracle连接的URL地址参数问题，一开始，始终报参数错，后来经过搜索，发现原来是SID的名字写错了，...

文章 2013-09-07 来自：开发者社区

oracle数据库是归档模式

查看oracle数据库是否为归档模式 SQL> select name,log_mode from V$database; NAME LOG_MODE ------------------ ------------------------ TEST NOARCHIVELOG SQL> archive log list Database log mode No Archiv...

文章 2013-09-03 来自：开发者社区

oracle 11g复制数据库

1.创建辅助实例a.创建辅助实例的密钥文件C:/>orapwd file=F:\oracle\product\10.2.0\db_1\database\PWDorcldup.ora password=lyn entires=30b.创建OracleServiceC:/>oradim -new -sid orcldup -startmode manualc.配置初始化参数文件F:\or....

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