1, Time zone concept
UTC(Universal Time Coordinated)
World coordinated time; The time obtained through rigorous calculation is accurate to seconds, and the error is within 0.9s, which is a more accurate world time than GMT.
GMT(Greenwich Mean Time)
gmt; Greenwich, London, UK, is defined as the place where the 0 ° longitude begins. The e ...
Posted on Wed, 01 Dec 2021 00:39:55 -0500 by teddyjas
1, Data table advanced operations
1. Clone the table and generate the data records of the data table into a new table
create table test1 like kfc; #Using the like method, copy the test1 table structure to generate the test2 table
insert into test1 select * from kfc；
create table test2 (select * from kfc);
Posted on Sun, 28 Nov 2021 09:57:05 -0500 by graham
Welcome to my GitHubHere we classify and summarize all the original works of Xinchen (including supporting source code): https://github.com/zq2599/blog_demosOverview of this articlestay Spring Cloud Gateway modifying the content of the request and response body In the article, we successfully modified the content of the request body through the ...
Posted on Wed, 24 Nov 2021 19:46:18 -0500 by wtg21.org
Welcome to my GitHubhttps://github.com/zq2599/blog_demosContent: classification and summary of all original articles and supporting source code, involving Java, Docker, Kubernetes, DevOPS, etc;Overview of this articleAs the fifth article in the Spring Cloud Gateway practical combat series, it's time to understand the role of filters. In this ar ...
Posted on Mon, 22 Nov 2021 02:46:42 -0500 by nitediver
Detailed explanation of ELK theory ELK deployment ELK details
Analysis log is the main means for operation and maintenance engineers to find problems and solve system faults. Logs mainly include system logs, application logs and security logs.Generally, a large-scale system is a distributed deployment architecture. Different s ...
Posted on Fri, 19 Nov 2021 11:04:36 -0500 by twinzen
Welcome to my GitHubhttps://github.com/zq2599/blog_demosContent: classification and summary of all original articles and supporting source code, involving Java, Docker, Kubernetes, DevOPS, etc;Overview of this articleLearn more about the circuit breaker function of Spring Cloud Gateway:Let's talk about theory firstThen determine the technology ...
Posted on Thu, 18 Nov 2021 17:43:46 -0500 by Bah! Name
Welcome to my GitHubhttps://github.com/zq2599/blog_demosContent: classification and summary of all original articles and supporting source code, involving Java, Docker, Kubernetes, DevOPS, etc;Overview of this articleThis article is the fourth in the Spring Cloud Gateway practice series. Let's summarize the types of existing predicate s. In tod ...
Posted on Tue, 16 Nov 2021 18:44:21 -0500 by abo28
In the database system, data is the basis of everything, and the security of data is the top priority. However, data may be lost or damaged for various reasons, so data backup and recovery is particularly important.PostgreSQL is a powerful open source object relational database system. After more than 30 years of active development, PostgreSQL ...
Posted on Tue, 09 Nov 2021 15:32:07 -0500 by sysop
The previous article introduces Kubernetes basic introduction，Tools needed to build Kubernetes cluster，How to install，How to build an application . This article describes how to use Kubernetes for resource scheduling.
Kubernetes as a container scheduling engine, resource scheduling is its most basic and important function. When a develope ...
Posted on Mon, 01 Nov 2021 00:42:44 -0400 by danielleuk