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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11304

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 17616

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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What are the commonly used shortcut keys for WPS tables?

Course Introduction：The WPS table shortcut keys are: The following table contains the content at work, and everyone will use the table function in the WPS software. There are many practical functions in the form. In order to improve work efficiency, we often use some shortcut keys. How much do you know about the shortcut keys of WPS tables? Let’s summarize the commonly used WPS table shortcut keys. The shortcut keys in the WPS table can help us quickly complete various operations, such as Ctrl+C to copy, Ctrl+V to paste, Ctrl+Z to undo, etc. At the same time, there are also some shortcut keys for specific functions, such as Ctrl+Home to jump to the first cell of the table, Ctrl+End to jump to the last cell of the table, etc. In addition, there are some shortcut keys that can help us in

2024-03-20 comment 0 990

How to set shortcut keys for MathType

Course Introduction：Click Preferences->Customize Keyboard in the MathType menu bar to open the [Customize Keyboard] dialog box. The last two items in [Customize Keyboard], [All Symbols] and [All Templates], are used to set all non-structural formulas respectively, as well as shortcut keys for a few structural formulas and all structural formulas. After selecting a formula in these two items, the current shortcut key will be displayed in [Current Key]. If it is empty, it means that this formula has not yet set a shortcut key. But no matter whether it is empty or not, you can set a new shortcut key in [Enter a new shortcut key]. Just press the shortcut key you want to set directly, without inputting it. After setting, you need to press the [Assign] button to assign it to apply to the new shortcut key.

2024-04-16 comment 0 596

ps zoom shortcut mac?

Course Introduction：Preface: This article is here to introduce you to the relevant content about the ps enlargement shortcut key mac. I hope it will be helpful to you, let’s take a look. How to enlarge a picture in PS without a mouse 1. The shortcut key for enlarging in PS is Ctrl plus +. The PS shortcut key for zooming out is Ctrl plus -. PS is mainly used for image editing, decoration, beautification, etc. If you want to edit images for use in documents, you can use cutouts, add text effects, etc. 2. Zoom out: [ctrl] + [+], zoom in: [ctrl] + [-] Hold down the CTRL key and press the plus and minus signs to zoom the layer. PS shortcut keys are shortcuts defined by Photoshop to increase drawing speed. They use one or a few simple letters to replace commonly used commands. 3. First, on the phone

2024-01-11 comment 0 1441

How to select all file shortcuts on Mac?

Course Introduction：This article will introduce you to the shortcut keys for selecting all Mac files. I hope it will be helpful to you. Please read on. What is the shortcut key for selecting all? The shortcut keys for selecting all on the computer are Ctrl+A, Ctrl+Shift+End, and Ctrl+Shift+Home. Ctrl+A is suitable for quickly selecting all pictures, text or folders on the current page, while Ctrl+Shift+End can select content from the current position to the end of the page, and Ctrl+Shift+Home can select content from the current position to the beginning of the page. content. These shortcut keys can improve operation efficiency and facilitate users to quickly select all the required content. The shortcut key for selecting all on your computer is the Ctrl+A key combination. Mouse click at the beginning and then at the end

2024-01-24 comment 0 2756

How to perform full-screen copy operation on mac system?

Course Introduction：Today, this site will share relevant content about full-screen copy shortcut keys on Mac system, hoping to solve your current problem. Remember to follow this site! let's start! Full-screen shortcut keys: Win key + L to lock the screen, Win key + M to minimize the window, Win key + SHIFT + M to restore the size and position of the previous window, Win key + D to instantly minimize all windows, and then press the key combination to restore, Win key + E to open resource management device. The F11 key on the keyboard can be used to display full screen. In addition, there are some other commonly used shortcut keys, such as Ctrl+C for copying, Ctrl+V for pasting, Ctrl+Shift+L for filtering, Enter for going to the next cell, and Shift+Enter for Go to previous cell, T

2024-01-16 comment 0 1553

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