1. Quote MySQL is a widely used relational database management system. For any enterprise or individual, data security and continuity are crucial. Backup and recovery are one of the important means to protect data security and achieve business continuity. This article will introduce the importance of MySQL backup and recovery, the selection of backup strategies, […]
Tag: recover
MySQL Backup and Recovery Best Practices: The Ultimate Guide
As businesses and applications increasingly rely on MySQL databases to manage their critical data, ensuring data reliability and availability becomes critical. In this digital information age, a strong backup and recovery strategy is the backbone of application stability. In this article, we will review all the commonly used MySQL backup and recovery strategies, which are […]
Oracle active/standby switchover, ogg recovery method (classic mode)
Foreword: This article mainly introduces how to recover the ogg process (classic mode) running in the main database and standby database when the Oracle database physical ADG primary and backup switches (switchover, failover). Test recovery scenario: 1 A switchover occurs between the active and standby devices, and the main database is the ogg source. 2 […]
centos9 image source, network configuration, accidentally deleted python recovery
centos9 Accidentally deleted python recovery solution centos9 accidentally deleted /usr/bin/python3.9, causing yum to become unavailable. [root@localhost ~]# yum makecache -bash: /usr/bin/yum: /usr/bin/python3.9: bad interpreter: No such file or directory [root@localhost ~]# python3 -bash: /usr/bin/python3: No such file or directory [root@localhost ~]# python3.9 -bash: /usr/bin/python3.9: No such file or directory If you just delete this file […]
mysql backup and recovery
Backup: full backup incremental backup Full backup: Back up the entire database completely Incremental backup: Based on the full backup, backup of subsequent newly added content Backup requirements 1. In a production environment, data security is crucial, and any loss of data may have very serious consequences. 2. Why data is lost, program operation, calculation […]
MySQL database backup and recovery
Backup Full backup and full backup Full backup Full backup: Back up the entire database completely Incremental backup Incremental backup: It is to back up subsequent newly added content based on the full backup. Backup requirements 1. Data security is crucial in a production environment, and any data loss may have serious consequences. 2. Why […]
MySQL backup and recovery
The importance of data backup 1. In a production environment, data security is crucial Any data loss will have very serious consequences. 2. Why data is lost: program operations, calculation errors, disk failures, unpredictable events (earthquakes, tsunamis), human operations Classification and backup strategies of database backup 1. Physical backup Physical backup: Backup of physical files […]
Mysql database backup and recovery and log management
1. Data backup overview 1.1 Classification of backups Full backup: The entire database is backed up completely Incremental backup: Based on the full backup, backup of subsequent newly added content Cold backup: shut down the backup, stop the mysql service, and then perform the backup Hot backup: Start backup without shutting down the mysql service […]
06.Oracle data backup and recovery RMAN
oracle basic system learning directory 01.CentOS7 silently install oracle11g 02.Oracle startup process 03. Start with simple sql 04.Oracle’s architecture 05.Oracle database objects 06.Oracle data backup and recovery 07.User and permission management 08.Oracle tables 09.Partitioning of Oracle tables 10.Oracle synonyms and sequences 11.Oracle’s view 12.Oracle index 13.Oracle connects to Java through JDBC 14.Transactions in Oracle 15.Oracle11g […]
Oracle database error ORA-600: [4194] processing after recovery
Error ORA-600: [4194] Processing after Oracle database recovery Fault phenomenon Solution Rebuild UNDO tablespace ORA-600 [4137] error Possible cleanup work Fault phenomenon Phenomena: After completing the recovery of the NBU tape library, the test library will hang up within a few minutes after it is opened. The alarm log error is as follows: Errors in […]