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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11267

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 17592

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 11304

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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Toolbar menu with elastic animation effect using jquery and CSS3

Course Introduction：This is a toolbar menu special effect with elastic animation effect made using jquery and CSS3. The toolbar menu only displays a circular button by default. When the button is clicked, the submenu items will expand with elastic animation, and the effect is very cool.

2017-01-19 comment 0 1257

Word generates QR code

Course Introduction：First, go to "Development Tools" - "Controls" - "Old Tools" - "Other Controls" and select "Microsoft BarCode Control" in the pop-up window to confirm. At this time, a barcode will appear in Word. Right-click the barcode, select "Properties" in the pop-up drop-down menu - click "Customize".

2019-06-14 comment 0 28327

How to open the subject tool in ps

Course Introduction：How to open the subject tool in PS: 1. First open the PS software; 2. Then click [Quick Selection Tool] in the left menu bar; 3. Finally, you can see the [Select Subject] option in the pop-up property bar. .

2020-05-07 comment 0 10493

Tutorial on how to deal with the large prompt box that pops up every time you open a worksheet in Excel

Course Introduction：1. Open a worksheet that contains macros, and a large prompt box will pop up. Click OK. 2. Click the Tools Macro Security command on the menu. 3. In the pop-up menu, set the security to low in the Security Level tab. 4. Check all reliable developers and click OK. 5. Another setting method is to click the Tools and Options command in the menu bar. 6. Click Security, Macro Security in the pop-up menu. 7. Then set the security level and reliable development in the pop-up menu to low, check all options for reliable developers, and click OK. 8. After saving, close the worksheet and start it again and no annoying big prompt box will appear.

2024-03-29 comment 0 466

Detailed tutorial on setting the position of printing page numbers in wps2019

Course Introduction：1. Open the document to be edited with wps2019, and click the [Insert] menu item on the menu bar. 2. Click the drop-down button of [Page Number] on the opened insertion toolbar. 3. Click the [Page Number] menu item in the page menu. 4. In the page number setting window that opens, click the drop-down button of [Position]. 5. Click the [Bottom Left] menu item in the pop-up menu. 6. Return to the editing page of wps2019, and you can see the set page number on the left side of the bottom.

2024-03-27 comment 0 714

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