Installation Oracle11gR2 RAC--- modifies the online log

Connect to the database server, query existing online log group information, and add online log groups. Connected to Oracle Database 11g Enterprise Edition Release 11.2.0.4.0C

2022-06-01 Database 我要分享

Example of SublimeText3 configuring react syntax check

Editor to share with you an example of SublimeText3 configuration react grammar checking, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it! Sub

2022-06-02 Internet Technology 我要分享

The solution to the failure of CentOS7.5 to start sqlplus

This article introduces the relevant knowledge of "the solution to the failure of CentOS7.5 starting sqlplus". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully.

2022-05-31 Database 我要分享

How to switch oracle switch logfile logs and what alter system checkpoint does

This article shows you how to switch oracle switch logfile logs and what alter system checkpoint does. The content is concise and easy to understand. It will definitely brighten your eyes, through the details of this article.

2022-06-01 Servers 我要分享

New feature of MySQL8.0-- Group by

The Group by statement is used in conjunction with aggregate functions such as count,sum,avg,max,min to group result sets according to one or more columns. (1) remove duplicate values: only one line of results is displayed according to the keywords after group by; (2) mys

2022-06-01 Database 我要分享

Set other fields to self-increment primary key

1. Create a test table and view the table structure mysql > desc test_autoinc;+-+-

2022-06-01 Database 我要分享

Rman configuration DataGuard uses the main library to back up with filesystem when not configured

Environment hostname, database version, dbnamedb_unique_nameIP address, system version, Jason1 (primary) oracle11204Jasonjason1192.168.1.99rhel6.6_x86_64ja

2022-06-01 Database 我要分享

What I have to say about China Digital Router IPSEC

In a word, the IPSEC of Shencode router is very unique experimental environment: two routers are directly connected, a total of three network segments 192.168.0.0192.168.1.0192.168.2.0, of which 192.168.1.0 simulates public network and the other two network segments simulate private network.

2022-06-01 Network Security 我要分享

Subquery merge Derived_merge

1. Brief introduction to Derived_merge this is how MySQL Reference manual describes it: The derived_merge flag controls whether the optimizer

2022-06-01 Database 我要分享

How to locate and solve the problem of high load and slow execution of MySQL

This article shows you how to locate and solve the problem of high load and slow execution of MySQL. The content is concise and easy to understand, which will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article. The explain command statement of MySQL provides how to

2022-05-31 Database 我要分享

How to install other engines online for Mysql

This article mainly introduces Mysql how to install other engines online, the article is very detailed, has a certain reference value, interested friends must read it! Mysql online installation of sphinx storage engine requires sphinx storage to be installed in existing mysql

2022-05-31 Database 我要分享

ELK software installation

Elasticsearch download: https://www.elastic.co/downloads/past-releaseslogstash download https://www.elastic.co/downl

2022-06-02 Servers 我要分享

How to use the integer data type tinyint in mysql

This article mainly explains "how to use the integer data type tinyint in mysql". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let the editor show you how to use the integer data type tinyint in mysql.

2022-06-02 Development 我要分享

How to realize VXLAN IBGP RR experiment

This article introduces you how to achieve VXLAN IBGP RR experiment, the content is very detailed, interested friends can refer to, hope to be helpful to you. Network topology diagram: SPINE1 configuration =

2022-05-31 Servers 我要分享

What is the use of Oracle's partition table?

This article mainly explains "what is the use of the partition table of Oracle". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the use of the partition table of Oracle"? The following is a simple example of the partition table

2022-05-31 Database 我要分享

What is the ZABBIX database table like

What is the ZABBIX database table? aiming at this problem, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible way. The importance of zabbix database table structure want to understand the front-end generation of zabbix

2022-05-31 Database 我要分享

How to arm your code base quickly

This article introduces the knowledge of "how to arm your code base quickly". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something! 1. Standard co

2022-06-02 Development 我要分享

VPC configuration case

Topology: configuration: N9K-1:vlan 1-500vrf context APPvrf context CTRIXvrf context DBvrf context Keep_alivevrf contex

2022-06-03 Servers 我要分享

How to realize load balancing in mysql

This article introduces how to achieve load balancing in mysql. The content is very detailed. Interested friends can use it for reference. I hope it will be helpful to you. 1. Environment: mysql 5ubuntu10.04 x86_64mdb1 eth0 192

2022-05-31 Database 我要分享

CDH5 offline installation manual

Cloudera manage (offline) installation manual (step by step) 1. Preparatory work 1.1. System environment hardware equipment: vm virtual machine network composition: 192.168.210.131master192.168.210.132sla

2022-06-03 Internet Technology 我要分享