postgres=# create database mydb;
CREATE DATABASE
postgres=# alter database mydb;
ALTER DATABASE
postgres=# create table mydbtable(name varchar(80),year int);
CREATE TABLE
postgre
Tag: common
Commonly used PostgreSQL HA (High Available) Tools Collection
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WebStorm uses shortcuts, quick collection
1. Essential shortcut keys Ctrl+/: comment the current line Ctrl+Shift+/: insert a comment at the current position Ctrl+Alt+/: block Comment, and Focus to the first line, and write the comment desc
Embedded – What is the common structure of firmware files?
I have a total of n00b in embedded programming. Suppose I am using a compiler to build the firmware. The result of this operation is a file that will flash to (I guess) the MCU (such as ARM or AVR)
# Realize the common application deployment of LAMP architecture
Implement LAMP architecture 1, Compile and install httpd2.4 and php7.3 environment< /h3> Environment: Master server: 192.168.37.10 php+httpd service
Slave server: 192.168.37.20 mariadb server
Soft
06- Common RAID technology
Contents
RAID – Redundant Array of Independent Disks
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20190314 Nginx: Compilation and installation, use of location, common variables
Nginx
is a high-performance HTTP and reverse proxy service. It is a lightweight web server, reverse proxy server and email proxy server, features: less memory, strong concurrency,
epoll:
Th
4 common cache problems and solutions
Foreword Using cache can alleviate the pressure of large traffic, significantly Improve the performance of the program. When we use the cache system, especially in the case of large concurrency