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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11274

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 17599

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 11309

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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How to change ps color palette into color palette

Course Introduction：The first step is to open PS and click the "Window" option. ||The second step is to click on the “Swatches” option. ||The third step is to click on the color palette on this page to see the color palette.

2019-07-23 comment 0 27176

JS web safe color palette DW style_page background

Course Introduction：A web page safe color palette made using JS. I hope you can use it!

2016-05-16 comment 0 1386

Course Introduction：Function 1 of the GD library, imagecreatetruecolor ----- Create a true color image imagecreatetruecolor(int x_size, int y_size) //x represents width, y represents height 2, imagecolorallocate assigns colors (palette) to an image imagecolorallocate (resource image,int red,int green,int blue)/...

2017-06-14 comment 0 2331

How to use welding tools in CorelDraw X4 How to use welding tools in CorelDraw X4

Course Introduction：Open the software CorelDRAWx4 and enter the editing page. Use the Ellipse Tool to draw a circle in the Action Panel. Use the color palette to color the circle. Use the Rectangle Tool to draw a rectangle to the right of the circle. Use the color palette to color the rectangle. Place the rectangular frame on the circle and select all, click the welding tool on the menu bar, and you can easily complete the welding.

2024-06-06 comment 0 642

How to add color palette in PS

Course Introduction：How to add color swatches in PS: First open the PS software and create a new blank canvas; then select the edit option and find the preset manager inside; then find the word swatch in the preset type; finally select the downloaded new swatch file. Click OK to complete the settings.

2019-08-12 comment 0 8982

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