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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11327

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 17632

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 11338

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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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

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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Which brand of printer is good?

Course Introduction：Recommended printer brands based on the following factors: HP (mature technology, rich product lines), Canon (fast printing speed, high color reproduction), Brother (high cost performance, low consumable costs), Epson (fine printing quality, leading photo printing technology) , Lake (specialized in laser printers, fast printing speed), Samsung (fashionable appearance, diverse functions), Kyocera (strong durability, leading laser printer technology), Ricoh (multi-function all-in-one printers with rich models and high printing quality), Lee Meng (strong laser printer technology, excellent color printing effect), Deli (high cost performance, low consumable prices).

2024-04-01 comment 0 701

How to merge two photos in ps

Course Introduction：How to merge two photos in PS: first open a picture and a material in PS; then move the picture to the material photo; then apply the brush tool on the background of the photo; finally create a mask and use a black brush to adjust the flow and transparency, just smear the edges of the image.

2019-08-30 comment 0 7169

What software is cdr What is cdr

Course Introduction：cdr is the source file storage format of the software CorelDraw. Tutorial Applicable Model: Lenovo AIO520C System: Windows 10 Professional Edition: CorelDraw2021 Analysis 1cdr is the source file storage format of the software CorelDraw. It is a vector file. Similarly, we can use CorelDraw software to open cdr files. This software provides various functions such as vector animation materials, interface design, website construction, bitmap writing, and web page animation. It is a design and typesetting software for designers and printers. Supplement: What is cdr software for? 1CDR’s full name is CorelDraw. It is a vector drawing software. It is a common design and drawing software and is widely used.

2024-02-22 comment 0 1523

Classic black and white contrast! Xiaomi Civi4 Pro black and white version pictures

Course Introduction：According to news on April 1, Xiaomi Civi4Pro offers three limited edition customized colors, including pink, blue and black and white, priced at 3,599 yuan. Now the black and white version has arrived in our review room, and here is a picture tour for you. It is reported that Xiaomi Civi4Pro’s limited-edition customized color is made of Kona leather + glass. The overall design has a more camera-like feel, and it is also one of the most recognizable mobile phones in the Civi series. This time, the Xiaomi Civi4Pro limited edition color only provides the 16GB+512GB top version, and the basic configuration remains unchanged. Specifically, the phone uses a 6.55-inch full-depth micro-curved screen, is equipped with Qualcomm Snapdragon 8sGen3 platform, has a front camera of 32 million pixels + 32 million pixels, and a battery capacity of

2024-04-01 comment 0 1021

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