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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11447

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17735

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11438

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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There are differences between the two methods of obtaining timestamps in PHP. Why?

Try to use two methods of PHP to obtain the current timestamp. There are differences. However, the two timestamps converted into time are indeed the same time point. I checked the unit of the timestamp on the network is seconds. Why is this happening? {Code...} The output result is: timestamp is 1:1492131843 timestamp is 2:1492134...

2017-05-16 13:14:11

Unforeseen results occur when calculating time difference in seconds in PHP by converting two dates to Unix timestamps.

According to the title, I'm trying to find the difference in seconds and then convert those seconds to days and hours. After reading and following similar questions, I built a function that adds the hour, day, week, month, or year I want to today's datetime, and I get the correct results from this part. However, I then try to convert the two dates (start date and move date) to unix timestamps, subtract both timestamps to find the difference between the two dates in seconds, and then convert to days or minutes (/86400 and /3600) I don't get the results I expected. This is the code..&

2023-09-03 09:22:01

Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

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Building a Unit Converter App in Angular with Tailwind CSS

Course Introduction：Unit converters are handy tools for converting measurements between different units, making it easier to work with various systems of measurement. In this tutorial, we'll build a unit converter app in Angular that allows users to convert values betwe

2024-09-04 comment 0 748

Create a numerical unit converter, developed using Golang

Course Introduction：Numeric unit converter is a common tool that can help us convert between different units, such as conversion between length units, conversion between weight units, etc. Today, we will use Golang to develop a numerical unit converter, let's take a look at a specific code example. First, we need to create a new Golang file named converter.go. In this file, we will define a structure Converter to store information and methods related to the converter.

2024-02-24 comment 0 855

Golang implementation of unit conversion application

Course Introduction：Title: Measurement unit conversion application implemented by Golang In modern society, measurement unit conversion is a common and important operation. Whether in daily life or in the field of engineering, we often need to convert different units of measurement to better understand and apply data. In order to facilitate users to convert measurement units, we can use the Golang language to write a practical application to achieve conversion between different measurement units. In this article, we will explain how to write a simple but functional

2024-02-25 comment 0 907

How to convert Number type data into Date type

Course Introduction：1. How to convert Number type data into Date type? In some programming languages or databases, Number type data can be converted to date type through the following steps: Determine the unit of the timestamp: Determine whether the Number type data represents seconds, milliseconds or other timestamp units. Use appropriate functions for conversion: Convert Number type data to Date type according to the functions provided by the programming language or database. For example, in Java you can use Date or LocalDateTime classes. longtimestamp=1612137600;//Example timestampDatedate=newDate(timestamp*1000);//Convert to Date pair

2024-01-23 comment 0 1250

How Can I Efficiently Convert Between Double-Precision Floats and 64-bit Integers Using SSE/AVX Instructions?

Course Introduction：Efficient Double/int64 Conversions with SSE/AVXSSE2 provides intrinsics for converting vectors between single-precision floats and 32-bit...

2024-12-08 comment 0 514

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