oracle数据库的相关内容

文章 2022-12-19 来自：开发者社区

Oracle数据库基本概念理解（7）

--删除用户drop user sz cascade;--创建表空间create tablespace worktablspdatafile 'C:\app\lenovo\oradata\orcl\EMPTB.dbf' SIZE 5M AUTOEXTEND ON;--修改表空间ALTER tablespace worktablsp ADD datafile 'C:\app\lenovo\orad....

文章 2022-12-19 来自：开发者社区

物流项目中Oracle 数据库的使用及OGG是如何同步

业务服务器之Oracle 数据库首先物流系统Logistics使用Oracle数据库，采用Docker容器部署，启动容器Contanier，再启动Oracle数据库，进行访问，查看数据库database中表：物流系统相关业务表。1）、针对myoracle容器来说，启动容器以后，不会启动Oracle数据库相关服务，需要手动启动2）、Oracle数据库相关服务：数据库服务Server和监听服务Lis....

文章 2022-12-19 来自：开发者社区

Oracle数据库基本概念理解（3）

/*| PL/SQL编程*/--声明变量DECLARE V_NAME VARCHAR2(20); --一般变量 V_AGE NUMBER(2); v_id SUN.TUSER.USERID%TYPE:=14;--属性变量 v_user SUN.TUSER%ROWTYPE; --行属性变量BEGIN --赋常量值 V_NAME:='Tom'; V_AGE :=20...

文章 2022-12-19 来自：开发者社区

Oracle数据库基本概念理解（2）

文章 2022-12-19 来自：开发者社区

Oracle数据库基本概念理解（1）

--函数数字转换为字符--0 强制位数，9位数不够不显示 $美元SELECT TO_CHAR(124.3456,'0000.00') FROM dual ;SELECT TO_CHAR(124.3456,'9999.99') FROM dual ;SELECT TO_CHAR(124.3456,'$9999.99') FROM dual ;--日期日期转换为字符SELECT TO_...

文章 2022-12-15 来自：开发者社区

Oracle各种版本下“示例数据库的创建”的创建

重建scott用户及数据---------- 重建scott用户 sqlplus / as sysdba SQL>@?/rdbms/admin/utlsampl.sql 重建hr用户及数据 --- 重建hr用户 @?/demo/schema/human_resources/hr_main.sql hr SYSAUX TEMP /tmp 插入示例方案 PDB ：使用 DBCA在 12.1......

文章 2022-12-15 来自：开发者社区

Oracle如何修改数据库的DBID和DBNAME？

简介在Oracle中，DBID和DBNAME是两个极其重要的对象。作为标记信息，DBID和DBNAME包含在参数文件、密码文件、数据文件、日志文件、备份集合、归档日志中。一般情况下，已经创建好的数据库是不需要修改DBID和DBNAME的。因为，修改这些信息意味着Oracle关键信息的变化，将导致备份失效。DBID是一个十进制数字，Oracle依据唯一性算法计算得到作为内部数据库的标记信息。在数据....

文章 2022-12-15 来自：开发者社区

启动Oracle数据库报错ORA-48173、ORA-48187、OSD-00002、OS-Error (OS 5) Access is denied

现象windows server 2006的Oracle 12c，在服务里启动了数据库，正常，但是在通过sqlplus连接进去后发现数据库是空闲实例，开始启动数据库，结果报错： SQL> startup ORA-48173: error checking directory existence during ADR initialization [D:\app\diag\rdbms\orc....

文章 2022-12-15 来自：开发者社区

常见问题：在 Windows 平台的 Oracle 12.1 数据库版本上的 Oracle Home 用户 (Doc ID 2101982.1、Doc ID 1529702.1)

常见问题：在 Windows 平台的 Oracle 12.1 数据库版本上的 Oracle Home 用户 (Doc ID 2101982.1)FAQ: Oracle Database 12.1 Oracle Home User On Windows (Doc ID 1529702.1)用途提供了在 WINDOWS 平台上针对 12c 的新特性”Oracle Home 用户”的常见问题的回答。问....

文章 2022-12-15 来自：开发者社区

Oracle 查询数据库大小

其它1、查询表空间大小：10g和11g：https://www.xmmup.com/oracle-11gchaxunbiaokongjiandaxiao.html12c：https://www.xmmup.com/oracle-12cchaxunbiaokongjiandaxiao.html2、查询数据文件（含临时和Undo）详情https://www.xmmup.com/oraclechaxu....

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