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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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What does closing a position mean?

Course Introduction：Closing a position refers to closing an existing trading position, including a sell buy position or a buy sell position. The steps include: Determine the position type (buy or sell). Select the method of closing the position (market order, limit order or stop loss order). Determine the quantity. Execute the closing order. After confirmation is complete.

2024-07-30 comment 0 1015

What exchange is Bitstamp? Detailed explanation of Bitstamp principles, advantages and disadvantages

Course Introduction：Bitstamp is a leading cryptocurrency exchange operating since 2011, providing buying, selling, storage and trading services. Its advantages include security, liquidity, and support for multiple cryptocurrencies, while disadvantages include high transaction fees, geographic restrictions, and transaction restrictions.

2024-08-16 comment 0 285

PEO coin detailed buying and selling and trading tutorial (newbie version)

Course Introduction：What currency does PEO belong to? PEO (PeoPay) is a cryptocurrency based on blockchain technology. PEO coin buying and selling and trading tutorial (newbie version) 1. Create a cryptocurrency wallet. It is recommended to use mobile or desktop wallets such as TrustWallet or MetaMask. After creating your wallet, record your mnemonic phrase and keep it safe. 2. Purchase PEO coins through centralized exchanges: Binance, KuCoin and other exchanges support PEO coin transactions. Through decentralized exchanges: Uniswap, PancakeSwap and other DEXs support PEO currency transactions. 3. Transfer PEO coins to your wallet After purchasing PEO coins, transfer them from the exchange to your wallet. Make sure you select the correct network (

2024-10-12 comment 0 567

Solana Coin Detailed Buying, Selling and Trading Tutorial (Detailed Graphical Explanation)

Course Introduction：Solana Coin (SOL) is a cryptocurrency based on the Solana blockchain platform. Buying and trading tutorials include: 1. Create an exchange account; 2. Top up the account; 3. Buy for spot or futures trading; 4. Save to wallet; 5. Sell.

2024-08-27 comment 0 502

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