昨天在工作中遇到一个情况,就是Development环境中的某台服务器上的某个数据库进入了Suspect状态.以前看书倒是知道说这个状态,不过实际工作当中从来没有遇到过.那么一些背景情况是这样的. 环境:Development 数据库产品:SQL Server 2008 R2 数据库业务类型:DataWare House 数据库恢复模式:Simple 备份情况:每天就一个备份 在Google上查询了相关资料加上自己对于这种情况已有的储备知识,首先我第一部先到SQL Server Log里面查找最…

TL;DR: Don't ever set fsync=off, don't kill -9 the postmaster then deletepostmaster.pid, don't run PostgreSQL on network file systems. Reports of database corruption on the PostgreSQL mailing list are uncommon, but hardly rare. While a few data corru…

Skip Headers Oracle® Database Patch 19121551 - Database Patch Set Update 11.2.0.4.4 (Includes CPUOct2014)   Released: October 14, 2014 This document is accurate at the time of release. For any changes and additional information regarding PSU 11.2.0.4…

<Windows Azure Platform 系列文章目录>  Azure SQL Database (19) Stretch Database 概览      Azure SQL Database (20) 使用SQL Server 2016 Upgrade Advisor      Azure SQL Database (21) 将整张表都迁移到Azure Stretch Database里      Azure SQL Database (22) 迁移部分数据到Azure Stretc…

使用duplicate target database ... from active database复制数据库 source db:ora11auxiliary db:dupdb 1.修改监听文件,静态注册监听 SID_LIST_ORA11 = (SID_LIST = (SID_DESC = (GLOBAL_DBNAME = ora11) (ORACLE_HOME = /u11/app/oracle/product//dbhome_1) (SID_NAME =ora11) ) (SID_DE…

primary database db_name=zwc, db_unique_name=zwc standby database db_name=zwc, db_unique_name=standby on primary database [oracle@vmdb12c ~]$ sqlplus sys/oracle@zwc as sysdba SQL*Plus: Release 12.1.0.1.0 Production on Thu Sep 26 16:12:10 2013 Copyrig…

DELETE DATABASE and DELETE USER statements delete all data tables, views, and macros from a database or user. The database or user remains in the Teradata Database as a named object and retains the available space. None of that space is any longer in…

问题描述: arcgis server10.1  arcgis sde10出现下面问题 Cannot connect to  database because the database client software failed to load. Be sure the database client software is installed and configured correctly. 由于数据库客户端软件无法加载,无法连接到数据库.请确保数据库客户端软件已安装和配置正确. 找原因:…

The database table has a physical existence in the database. A view is a virtual table, that is one that does not actually exist. View is made up of a query on one or many tables in a database. In database theory, a view is the result set of a stored…

w分布式查询.数据聚合.跨碎片join是可且应避免的.自增主键管理.基于-会话/事务/语句-选择碎片.通过-主键/模块/碎片索引-碎片化数据 http://www.agildata.com/database-sharding/ Database Sharding Challenges Due to the distributed nature of individual databases, a number of key elements must be taken into account:…

w主写从读.集群节点间时时内存复制.单表横切纵切.分析报表系统通过服务器联表 http://www.agildata.com/database-sharding/ Database Partitioning Options It has long been known that database partitioning is the answer to improving the performance and scalability of relational databases. Many…

http://www.ibm.com/developerworks/cn/web/1210_jiangjj_html5db/ 版权声明:本文博客原创文章,博客,未经同意,不得转载.…

正常应用和数据库交互的过程是这样的, 其实我们也可以把部分应用逻辑放到DB端去执行,来提升效率 User-defined Function Stored Procedures Triggers Change Notification User-defined Types Views UDF 用户定义的function,往往用于select中,不会修改数据本身 UDF可以用SQL实现,也可以用外部语言,右边是PG的例子 Stored Procedure 存储过程,可以理解成在数据库上执行一个脚本…

一,RECOVERY PENDING状态 今天修改了SQL Server的Service Account的密码,然后重启SQL Server的Service,发现有db处于Recovery Pending状态. Recovery Pending状态是指:数据库在还原(recovery)时遇到跟资源相关的错误,虽然数据库没有损坏,但是文件可能丢失,或者系统资源的限制,导致该数据库不能开始还原进程.数据库处于Recovery Pending 状态,表明还原进程被挂起,数据库不能开始数据库的数据和日志…

Copy Status Description Mounted The active copy is online and accepting client connections. Only the active copy of the mailbox database copy can have a copy status of Mounted. Mounting The active copy is coming online and not yet accepting client co…

使用CouchDB作为状态数据库 状态数据库选项 状态数据库包括LevelDB和CouchDB.LevelDB是嵌入在peer进程中的默认键/值状态数据库,CouchDB是一个可选的外部状态数据库.与LevelDB键/值存储一样,CouchDB可以存储任何以chaincode建模的二进制数据(CouchDB附件函数在内部用于非json二进制数据).但是,当chaincode值(例如,资产)被建模为JSON数据时,作为JSON文档存储,CouchDB支持对chaincode数据进行丰富的查询. L…

使用CouchDB作为状态数据库 状态数据库选项 状态数据库包括LevelDB和CouchDB.LevelDB是嵌入在peer进程中的默认键/值状态数据库,CouchDB是一个可选的外部状态数据库.与LevelDB键/值存储一样,CouchDB可以存储任何以chaincode建模的二进制数据(CouchDB附件函数在内部用于非json二进制数据).但是,当chaincode值(例如,资产)被建模为JSON数据时,作为JSON文档存储,CouchDB支持对chaincode数据进行丰富的查询. L…

P6 Professional Installation and Configuration Guide (Microsoft SQL Server Database) 16 R1       May 2016 Contents About This Guide...................................................................................... 11 Shared Topics in This Guide .…

昨天一台SQL Server 2008R2的数据库在凌晨5点多抛出下面告警信息: The log scan number (620023:3702:1) passed to log scan in database 'xxxx' is not valid. This error may indicate data corruption or that the log file (.ldf) does not match the data file (.mdf). If this error oc…

http://pymssql.org/en/stable/ref/pymssql.html """ This is an effort to convert the pymssql low-level C module to Cython. """ # # _mssql.pyx # # Copyright (C) 2003 Joon-cheol Park <jooncheol@gmail.com> # 2008 Andrzej Kuk…

一,简介 二,配置虚拟机 1,创建虚拟机 (1)添加三块儿网卡:   主节点 二节点 eth0:    公网  192.168.1.20/24   NAT eth0:    公网  192.168.1.21/24   NAT eth1:私网  192.168.2.20/24     host-only eth1:      私网  192.168.2.21/24   host-only eth2:    DHCP    Bridged eth2:     DHCP    Bridged 主机名:…

This article is from blog of Amazon CTO Werner Vogels. -------------------- Today is a very exciting day as we release Amazon DynamoDB, a fast, highly reliable and cost-effective NoSQL database service designed for internet scale applications. Dynamo…

Applies to: Oracle Server - Enterprise Edition - Version 11.1.0.6 to 11.2.0.4 [Release 11.1 to 11.2]Information in this document applies to any platform.GoalStep by step guide on how to create a physical standby database using RMAN DUPLICATE FROM ACT…

作者:david_zhang@sh [转载时请以超链接形式标明文章] http://www.cnblogs.com/david-zhang-index/p/5042640.html参照文档:https://azure.microsoft.com/en-us/documentation/articles/virtual-machines-configuring-oracle-data-guard/?cdn=disable#implement-the-physical-standby-databas…

P6 EPPM Manual Installation Guide (Oracle Database) P6 EPPM Manual Installation Guide (Oracle Database) Contents Oracle Database Manual Configuration Overview ,,★★5 Oracle Database Installation ,,★★6 Creating the Database Structure for Oracle and Loa…

commands : show sys connect sys as sysdba or connect system as sysdba logout or disc clear screen or cle screen (utlsample.sql  —> unlock scott tables.sql  —> all tables data.sql  —> add data into tables) connect scott/tiger start C:\utlsample.sq…

这是我在实际中遇到的一个问题,rac+dg架构将备库切为主库,srvctl管理器中没有database信息. 对于dbca创建的数据库,srvctl中包含了数据库和实例的信息.但是对于备份恢复的RAC数据库来说,srvctl中不包含数据库和实例信息. srvctl管理器中没有database信息,很多地方都无法使用srvctl命令管理.所以,需要手动将database信息添加到srvctl管理器中. 1.创建实验环境,实现srvctl管理器中没有database信息的目的.--原有环境是data…

使用证书配置的镜像基本安装微软次序做就可以了 http://msdn.microsoft.com/zh-cn/library/ms191140.aspx 备份还原首先要转换成完全备份模式没什么好多说的 USE master; GO ALTER DATABASE SET RECOVERY FULL; GO 直接备份数据库不能直接写C盘,目录自己建 BACKUP DATABASE [AdventureWorks2012] TO DISK = 'C:\HOSTA\AdventureWorks2012.…

SQL Server database administrators may frequently need in especially development and test environments  instead of the production environments to kill all the open connections to a  specific database in order to process SQL Server maintenance task ov…

  详细异常: A SQLiteConnection object for database '/data/data/.../database/....db' was leaked!  Please fix your application to end transactions in progress properly and to close the database when it is no longer needed 明显是数据库操作异常,数据库对象被锁,明确告诉你对象长久不用需要关闭…