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  Oracle flashback query and flashback database

  Oracle flashback query is different from flashback database: data flashback query only needs to enable undo tablespace to automatically manage rollback information. Using flashback delete technology and flashback database technology, you need to start the Recycle Bin and flashback the recovery area. (archive mode is used) specific settings:-cmd sqlp

  2022-06-01 15:46:26 Views: 206
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  Steps to install and configure Redis

  This article will explain in detail the steps to install and configure Redis, the content of the article is of high quality, so share it with you for reference. I hope you can get something after reading this article. Redis is compatible with most POSIX systems, such as Linux

  2022-06-01 15:46:26 Views: 243
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  Mysql double master + keepalived

  Environment OS: centos7Mysql version: mysql 5.7Keepalived: keepalived-1.2.20Mysql-vip:192.168.41.100Mysql-master1:1

  2022-06-01 15:46:08 Views: 275
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  Stand-alone installation and configuration of redis and startup scheme of production environment

  This paper briefly introduces the stand-alone installation and configuration of redis, which is convenient for others to obtain knowledge while recording the installation steps. First, download the latest (stable version) redis installation package from the official website. The official website address is as follows: https://redis.io/downloa

  2022-06-01 15:46:08 Views: 215
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  A brief Analysis of the availability of mysql double main Coordination keepalived

  One version. Mysql database version: Preconna Server, MariaDB or MYSQL1.mysql three storage engines mysql provides two storage engines, MyISAM,InnoDB.xtraDBMyISA

  2022-06-01 15:46:08 Views: 218
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  Summary of problems encountered in Lamp installation of MySQL

  1: the libaio package is missing. Libaio is an asynchronous non-blocking interface for reading and writing files under Linux. [root@12 MySQL] #. / scripts/mysql_install_db-user=my

  2022-06-01 15:46:08 Views: 291
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  Basic operation of mongodb 3.6.6 under Centos7

  The basic Operation mongodb of mongodb 3.6.6 under Centos7 MongoDB is a database based on distributed file storage. Written in C++ language. Designed to provide scalable high-performance data storage solutions for WEB applications. M

  2022-06-01 15:46:07 Views: 232
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  Redis implements data deletion strategy and eviction algorithm

  This article will explain in detail about the data deletion strategy and eviction algorithm of redis. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article. Data storage and expiration date in redis workflow, expired data

  2022-06-01 15:46:01 Views: 249
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  The method of adding, deleting, modifying and querying mysql based on sqlalchemy

  This article will explain in detail the method of adding, deleting, modifying and querying mysql based on sqlalchemy. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article. Demand scenario: the boss asked me to use the crawler to crawl

  2022-06-01 15:46:01 Views: 298
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  The method of caching paged data by redis

  This article will explain in detail the method of caching paging data in redis. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article. Several ideas: use a key cache for each page of data, and set the expiration time separately

  2022-06-01 15:46:00 Views: 245
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  The method of storing list using redis

  This article uses easy-to-understand examples to introduce the method of using redis to store list, the code is very detailed, interested friends can refer to it, I hope it can be helpful to you. One of the problems encountered in my work is that because business requirements need to be accelerated by redis, then

  2022-06-01 15:46:00 Views: 274
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  How to use Redis Sentinel

  In this issue, the editor will bring you about the use of Redis Sentinel, analyze and describe it from a professional point of view. I hope you can get something after reading this article. Redis Sentinel is a distributed architecture (distributed here

  2022-06-01 15:46:00 Views: 243
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  The method of backup and recovery of MySQL Database

  Do not understand the method of backup and recovery of MySQL database? In fact, it is not difficult to solve this problem. Let the editor take you to learn how to solve it. I hope you will gain a lot after reading this article. Backup of database # syntax: # mysqldump-h server-u user

  2022-06-01 15:46:00 Views: 244
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  What is the principle of redis to implement distributed locks?

  In this issue, the editor will bring you about the principle of redis to achieve distributed locks, analyze and describe it from a professional point of view. I hope you can get something after reading this article. Distributed lock is a way to control synchronous access to shared resources between distributed systems. In a distributed system

  2022-06-01 15:45:53 Views: 302
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  The method of ensuring that the data in redis are all hot data

  This article will explain in detail the methods to ensure that the data in redis are hot data. The content of the article is of high quality, so I hope you can get something after reading this article. When the memory used by redis exceeds the set maximum memory, a

  2022-06-01 15:45:53 Views: 302
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  How to realize the consistency of data Storage and caching by redis

  How does redis achieve consistency between data storage and caching? In view of this problem, this article gives the corresponding analysis and answers, hoping to help more friends who want to solve this problem to find a more simple and feasible way. Method 1: database saves data, redis does not persist

  2022-06-01 15:45:53 Views: 287
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  What is Mongoose in egg? How do I use it?

  This article will explain in detail what Mongoose is in egg. How do I use it? The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article. What is Mongoose? Mongoose is Mo.

  2022-06-01 15:45:52 Views: 299
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  What is the difference between the two ways of implementing persistence in redis?

  What is the difference between the two ways in which redis implements persistence? In response to this problem, the editor summed up this article today, hoping to help more friends who want to solve this problem to find a more simple and feasible way. Redis is an advanced key-value database. It is similar to memcac

  2022-06-01 15:45:49 Views: 243
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  The method of recovering redis downtime data

  This article will explain in detail the methods of restoring redis downtime data. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article. Redis data is kept in memory. If the machine goes down, the data in memory does not exist.

  2022-06-01 15:45:49 Views: 206
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  Detailed tutorial of AMH Panel + wordpress to build personal blog (part two)

  The last section has explained in detail the AMH panel building part of the blog. If you haven't seen the panel building part, you can first take a look at the AMH panel building part I wrote in the previous section, and then come back to see the content of this section. This section will finish the rest until we finish building a complete

  2022-06-01 15:45:27 Views: 211