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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11302

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 17615

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 11321

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 crop pictures in pscs6

Course Introduction：How to crop pictures in pscs6: First open a picture and import it into ps; then find and select the cropping tool; then just drag the edges to determine the cropping range.

2019-08-12 comment 0 6040

Javascript implements 3D switching focus map_javascript skills

Course Introduction：A js focus slide effect that uses JavaScript to imitate the 3D stereo switching effect. The method of use is very simple: just use the mouse to drag the picture to the left and right~

2016-05-16 comment 0 1523

How to crop pictures freely in PS

Course Introduction：How to freely crop pictures in PS: First open PS and use the Lasso tool or Pen tool to freely create a selection; then click the [Move Tool] with the mouse; then just drag the selection to crop the selected image.

2019-08-13 comment 0 62120

How to trim unwanted parts in PS

Course Introduction：Method: First open PS and import the picture; then click "Crop Tool" on the left toolbar; then a black box appears around the picture, drag the border of the black box, and select the selection. The content in the selection is the content you want to keep. , click "Enter"; finally save the cropped picture.

2021-04-22 comment 0 26483

How to crop the screen freely in premiere

Course Introduction：How to freely crop the screen in Premiere: First, right-click the mouse in the blank space of the "Project" panel and select "Import"; then select "New Project", "Adjustment Layer", and drag the adjustment layer to the v2 track and place it on the video material Above; finally find Crop in the Effect Controls panel.

2021-01-05 comment 0 41806

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