rstudio recovery

Database backup and recovery, inspection object settings to be concerned: 1. database Name, and DBID; -- dbid in v $ database SYS @ ORCLselectdbid, namefromv $ database; DBIDNAME-------------------1385095721ORCL2. location of the control file; showparametercontrol_files; selectnamefr Database backup and recovery, inspection object settings to be concerned: 1. database name, and DBID; -- dbid in v $ database

Summary of oracle accidental deletion data recovery methods and oracle accidental deletion data recovery If the user accidentally deletes/updates the data, there is no direct way for the user to recover the data, they must seek help from the DBA to recover the database to Oracle9i, this embarrassing situation has improved. Or (www.jb51.net) acle 9i provides a new technical method-Flashback query. You can us

Principle of cocos2d-x recovery pool, cocos2d-x recovery Cocos2d-x comes from the cocos2d-iphone, and in order to be consistent with Objective-c, the cocos2d-x also uses the reference counting and automatic recovery memory management mechanism. To realize automatic memory reclaim, You need to inherit from the cocos2d-x's root class CCObject. Of course, automatic

Method/Step Scan your computer with anti-virus software, and then restart it after cleaning to make sure the virus is completely erased. Search the Internet for fast Dragon data recovery software, download a free version, according to the installation prompts, to download and install. Open the software and start running. Click on Universal Recovery. This feature is relatively complete, the computer poiso

Tags: ACK explanation ret Oracle direct exit record disk alter 好久没写东西了，今天写一篇凑个数吧，来公司一年多了，感觉自己到了一个小瓶颈期了。 以前每天很多新东西，都是忙着学，感觉没时间写博客总结一下，大部分都是写笔记，现在又是没东西可以写，每天干着95%都是重复的工作，大部分时间在运维，但我内心是把自己当做dba的，毕竟当初老大把我从java开发拉倒系统组^_^ 上次一个技术把表中的数据删除，这次是另一个技术把正确的包给覆盖了，我给恢复了，哈哈哈---有用的话看一下Reference Blog: 6761458虽然包恢复原理一样，但是操作差异一点，因为我的数据是12.2c的Body 1: Table Data Deletion recovery--1、查询删除数据时间点之前的数据selectfromasoftimestampto_timestamp(‘2016-08-11 16:12:11‘,‘yyyy-mm-dd hh

Label:poiinit_idenablemax offsetsnappysumjpg Data type MongoDB 3.x data capacity gb failure type Server power loss causes WIREDTIGER.WT file corruption Start error detected data files in E:\DTLFolder\MongoDB\dat A created by the ' Wiredtiger ' storage engine, so setting the active storage engine to ' Wiredtiger '. 2018-05-08t16:10:09.755 +0800 I STORAGE [initandlisten] Wiredtiger_open config:create,cache_size=18g,session_max=20000,eviction= ( threads_max=4), config_base=false,statistics= (FAST),

Database backup recovery, patrol needs to focus on the object settings:1. Database name, and dbid;--dbid in V$database[email protected]>select dbid,name from V$database;DBID NAME---------- ---------1385095721 ORCL2. Control the location of the file;Show parameter control_files;Select name from V$controlfile;3. Location of log files and archiving settings of the database;Select Log_mode from V$database;Archive log list;SELECT * from V$log;SELECT * from

Version information:RStudio-0.99.902R 3.2.2Install.packages (' caret ', dep = TRUE)The error message is as follows:Load the required thread bundle: latticeLoad the required thread bundle: Ggplot2Error: ' Namespace:stats ' has no Exit ' Sigma '

Problem Recurrence:When fetching data through a URL, the content found in the console is garbled and English is not affected. This is the problem even if the function shows that decoding through the utf-8 is done. This is because R is interpreted in

1. Excluding cases with missing values (rows) Algae[!complete.case (algae),]% find all cases with missing values in the algae data set There are two kinds of culling: one is to remove all the cases with missing values, and the other is to eliminate

My colleague Xiao Wang has a serious problem with the Windows XP system that needs to be reinstalled. This can make Xiao Wang angry, reload system means not only to the system of all the upgrade patch reinstall, but also to install all the software again, this will not waste a lot of time? In fact, Windows XP users need to do the prevention work ahead of time, restore their own computer system is not so cumbersome. Because you have a weapon in your Windows XP system that restores your system-th

Oracle 11g restart uard undo restore environment: OS: centos5.5db: oracle11g datauardversion: 11.2.0.2.0 shrink data file size in primary ALTER DATABASE DATAFILE '/oracle/oradata/skatedb/undotbs03.dbf 'resize 1024 M; www.2cto.com will receive an alert message later. log on to the standby database and find it in alert. the following error occurs in logl ...... media Recovery Waiting for thread 1 sequence 17248 (in transit)

Recovery of. net unmanaged resources and recovery of. net managed resources There are two ways to release unmanaged Resources 1. destructor 2. Implement the System. IDisposable Interface I. destructor The constructor can specify certain operations that must be performed when the class instance is created. When the Garbage Collector deletes an object, it can also call the destructor. At the beginning of th

Recovery of. net unmanaged resources and recovery of. net managed resources There are two ways to release unmanaged Resources 1. destructor 2. Implement the System. IDisposable Interface I. destructor The constructor can specify certain operations that must be performed when the class instance is created. When the Garbage Collector deletes an object, it can also call the destructor. At the beginning of th

It is believed that many people have encountered the accidental deletion of data and asked the DBA to restore the data, but the user only knows the approximate time of occurrence. At this time, you may see that there are two backups at the same time as the error occurs. If you restore to the last one, you may have to check the data and find that something went wrong. If there are many logs, it takes a lot of time. Today, we see the Oracle recovery pri

Mysql common operations: mysql backup and recovery, mysql backup and recoveryLog on to mysql = mysql-uroot-p to view the database version select version (); View DatabasesShow datases; view the current database select database (); view the current logon user select user (); View tables under a database; use db; show tables; view table fields; desc dong; create database db1; create table tb1 ('id' int (4), 'name' char (40) ENGINE = myisam default chars

MySQL5.6 backup and recovery command, mysql5.6 backup and recoveryBackup Mysqldump-P 3010-h 130.51.2.24-uroot-proot zplatdb> backup. SQL Restore Recover to my local machine, because I have not set a password for this machine, the password is blank,-p there do not know fill in the token Mysql-u root-p *** zplatdb In fact, you can: Mysql-u root zplatdb In addition, you can also use the source command, which is simpler, but the time is much

Method 1: The original method is the built-in method of the Android system.After the phone is shut down, press "volume down key" + "power supply key". After seeing the power-on sign, we immediately release the power button, but the "volume down key" cannot be relaxed, in a few seconds, you can enter the Recovery mode.SecondIf master Zhuo is installed on the computer, we can connect the mobile phone to the computer, and th

When the iOS corruption in router needs to be restored, Ctrl+break (Packettrace is CTRL + C) When the router starts, enters Rommon mode, and the command prompt changes to: Rommon 1>Then enter the following command:Rommon 1>IP_ADDRESS=A.B.C.D//router's current IP addressRommon Subnet mask for 2>ip_subnet_mask:x.x.x.x//routerRommon 3>default_gateway=y.y.y.y//Router Default gatewayRommon 4>tftp_server=a.b.c.d//tftp Server IP AddressRommon 5>tftp_file=c2800nm-advipservicesk9-mz.124-15.t1.bin//iOS fi

Case 7: --Recovery with incremental backups 1) Establish an incremental backup -------0-level backup using image backup as an incremental backup rman> copy datafile 2 to '/disk1/rman/prod/users_%s.bak '; 2) Establish a level 2 differential backup --------test Environment 08:05:52 sql> Conn Scott/tiger Connected. 08:05:58 sql> 08:05:58 sql> INSERT INTO the EMP1 select * from EMP1; 4 rows created. 08:06:00 sql>/ 8 rows created. 08:06:01 sq