ORA-01093错误解决-Mysql Tutorial-php.cn

Home

Database

Mysql Tutorial

ORA-01093错误解决

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 07, 2016 pm 04:43 PM

ordatabase

环境是RAC+RAC的DG的10.2.0.5环境,当时是把主备库打开，想启动MRP进程（实时应用），但是执行语句时出现1093错误：

环境是RAC+RAC的DG的10.2.0.5环境

当时是把主备库打开，想启动MRP进程（实时应用），但是执行语句时出现1093错误：

SQL> alter database recover managed standby database ;
alter database recover managed standby database
*
ERROR at line 1:
ORA-01093: ALTER DATABASE CLOSE only permitted with no sessions connected

SQL> !oerr ora 1093
01093, 00000, "ALTER DATABASE CLOSE only permitted with no sessions connected"
// *Cause: There is at least one more session other than the current one
// logged into the instance. ALTER DATABASE CLOSE is not permitted.
// *Action: Find the other sessions and log them out and resubmit the command

上面说的很清楚：原因是多于一个的会话连接当前数据库实例。ALTER DATABASE CLOSE is not permitted;

解决办法是退出该会话；

字面意思没有很懂，当我查看主备库状态时发现备库处于只读状态：

SQL> select open_mode from gv$database;

OPEN_MODE
----------
READ ONLY
READ ONLY

哎，粗心误大事啊，启动实时应用备库需要在mount状态下的；

解决办法是，把备库启动到mount状态下，再执行：

SQL> shutdown immediate;
Database closed.
Database dismounted.
Oracle instance shut down.
SQL> startup mount;
ORACLE instance started.

Total System Global Area 327155712 bytes
Fixed Size 1273516 bytes
Variable Size 96469332 bytes
Database Buffers 226492416 bytes
Redo Buffers 2920448 bytes
Database mounted.
SQL> alter database recover managed standby database disconnect from session;

Database altered.

ok，，问题解决，其实就是要注意启用MRP，备库要处于MOUNT状态下进行

(注意：Oracle 10g，要在mount状态下，才能开启MRP。然而11g在open就可以)

Oracle 11g 在RedHat Linux 5.8_x64平台的安装手册

Linux-6-64下安装Oracle 12C笔记

在CentOS 6.4下安装Oracle 11gR2(x64)

Oracle 11gR2 在VMWare虚拟机中安装步骤

Debian 下安装 Oracle 11g XE R2

本文永久更新链接地址：

linux

Statement

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

MySQL's Role: Databases in Web ApplicationsApr 17, 2025 am 12:23 AM

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

MySQL: Building Your First DatabaseApr 17, 2025 am 12:22 AM

The steps to build a MySQL database include: 1. Create a database and table, 2. Insert data, and 3. Conduct queries. First, use the CREATEDATABASE and CREATETABLE statements to create the database and table, then use the INSERTINTO statement to insert the data, and finally use the SELECT statement to query the data.

MySQL: A Beginner-Friendly Approach to Data StorageApr 17, 2025 am 12:21 AM

MySQL is suitable for beginners because it is easy to use and powerful. 1.MySQL is a relational database, and uses SQL for CRUD operations. 2. It is simple to install and requires the root user password to be configured. 3. Use INSERT, UPDATE, DELETE, and SELECT to perform data operations. 4. ORDERBY, WHERE and JOIN can be used for complex queries. 5. Debugging requires checking the syntax and use EXPLAIN to analyze the query. 6. Optimization suggestions include using indexes, choosing the right data type and good programming habits.

Is MySQL Beginner-Friendly? Assessing the Learning CurveApr 17, 2025 am 12:19 AM

MySQL is suitable for beginners because: 1) easy to install and configure, 2) rich learning resources, 3) intuitive SQL syntax, 4) powerful tool support. Nevertheless, beginners need to overcome challenges such as database design, query optimization, security management, and data backup.

Is SQL a Programming Language? Clarifying the TerminologyApr 17, 2025 am 12:17 AM

Yes,SQLisaprogramminglanguagespecializedfordatamanagement.1)It'sdeclarative,focusingonwhattoachieveratherthanhow.2)SQLisessentialforquerying,inserting,updating,anddeletingdatainrelationaldatabases.3)Whileuser-friendly,itrequiresoptimizationtoavoidper

Explain the ACID properties (Atomicity, Consistency, Isolation, Durability).Apr 16, 2025 am 12:20 AM

ACID attributes include atomicity, consistency, isolation and durability, and are the cornerstone of database design. 1. Atomicity ensures that the transaction is either completely successful or completely failed. 2. Consistency ensures that the database remains consistent before and after a transaction. 3. Isolation ensures that transactions do not interfere with each other. 4. Persistence ensures that data is permanently saved after transaction submission.

MySQL: Database Management System vs. Programming LanguageApr 16, 2025 am 12:19 AM

MySQL is not only a database management system (DBMS) but also closely related to programming languages. 1) As a DBMS, MySQL is used to store, organize and retrieve data, and optimizing indexes can improve query performance. 2) Combining SQL with programming languages, embedded in Python, using ORM tools such as SQLAlchemy can simplify operations. 3) Performance optimization includes indexing, querying, caching, library and table division and transaction management.

MySQL: Managing Data with SQL CommandsApr 16, 2025 am 12:19 AM

MySQL uses SQL commands to manage data. 1. Basic commands include SELECT, INSERT, UPDATE and DELETE. 2. Advanced usage involves JOIN, subquery and aggregate functions. 3. Common errors include syntax, logic and performance issues. 4. Optimization tips include using indexes, avoiding SELECT* and using LIMIT.

See all articles