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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11459

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 17742

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 11447

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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Limit SQL query conditions based on a column

I have two tables, one is called user and the other is called payment. A user can have multiple payment records. For example: User 1 has 2 payment records User 2 has 5 payment records User 3 has 10 payment records User 4 has 7 payment records I have the following query: select*fromuserinnerjoinpaymentonpayment.user_id=user.idlimit2 This query will only return users 1 and his 2 payment records. But I want to return user 1 and user 2 with their payment records respectively

2024-04-02 17:17:29

Optimize Laravel Join to retrieve all data in a single row without duplicating tables

I have 4 MySQL tables with Member Deduction Payment Payment Deduction using PHP and Laravel7 Now I want to display single payment and all other deductions for each member continuously. (Assuming one person has only one payment) The database schema is as follows This is the HTML table I want to display This is the query I am using but it duplicates the data. $payments=Payment::leftJoin('members','payments.member_id','=','members.id')->leftJ

2024-01-16 11:40:46

transaction - laravel transaction does not commit. I don't know where I wrote it wrong.

Laravel transaction does not commit. I don’t know where I wrote it wrong. The following is the code DB::transaction(function () use ($payment,$userBalance) { {code...}

2017-05-16 16:49:04

"Sum(if) grouping in MySQL"

I have the following table which is not loading: Payment Date, User Id, MonthlyAmount_last30d User ID and Payment Date are from the table. In the monthlyAmount_last30d field I want to see the amount for the period (payment date - 30 days). I can't figure out how to group these columns correctly to get a result like this. If I only group by user_id, then I only see a first row with payment date (I need all rows, each row has the payment total for that user id, the total is the payment date for that row - 30

2023-09-11 13:16:22

Get data from Laravel Eloquent deep association and display it in the view

$suppliers=Supplier::with(['purcheses'=>function($query){$query->with(['payments'=>function($query){$query->sum('amount');} ])->get();}])->latest()->get();I have a supplier table that contains many relationship tables with purchasing, where

2023-09-09 16:27:00

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Binance wallet payment address

Course Introduction：To obtain the Binance wallet payment address, please perform the following steps: 1. Log in to your Binance account; 2. Click "Wallet"; 3. Select "Spot"; 4. Search for the currency; 5. Click "Deposit" ; 6. Generate payment address; 7. Copy or use the address.

2024-04-09 comment 0 1029

How to import payment address from Dogecoin wallet

Course Introduction：Steps for importing payment address from Dogecoin wallet: Obtain the payment address of the address to be imported. Open the Dogecoin wallet client and select "Import Addresses" or similar option. Enter your payment address and select your import type (view only or consumable). Confirm the address and click Import. The wallet will start syncing the blockchain to update the transaction history of the imported address.

2024-04-07 comment 0 976

Dogecoin wallet payment address

Course Introduction：A Dogecoin receiving address is a unique identifier consisting of letters and numbers used to receive Dogecoins. You can generate your payment address through a Dogecoin wallet, exchange, or online generator. The address structure includes prefix, address and checksum. To receive Dogecoin, please provide your payment address. Note that payment addresses are public and only generated from reputable sources, using a new address with each transaction for added security.

2024-04-10 comment 0 1302

How to create a USDT payment address and tutorial

Course Introduction：Compared with the cryptocurrency market with large price fluctuations, unlike other cryptocurrencies, the stable currency USDT is loved by investors because its value is stable and not subject to market fluctuations. USDT is a popular choice in the cryptocurrency market, with millions of blocks every day Chain users use Tether to conduct transactions on various blockchain networks. How to create a USDT payment address for the first transaction? This has become a crucial issue. You can create a USDT payment address through a wallet or through an exchange. Next, I will introduce it to you in detail. How to create a USDT payment address? Creating a USDT payment address is relatively simple. USDT exists in different blockchain networks in the form of tokens, such as Ethereum (USDT-ETH), TR

2024-01-19 comment 0 2906

How to check Douyin payment bill How to check payment bill

Course Introduction：On Douyin, a colorful platform, users conduct various transactions through Douyin payment, including shopping, rewarding anchors, recharging memberships, etc. The Douyin payment bill viewing function is like a clear recorder, showing you the ins and outs of each transaction in detail. Where to see the bill paid by Douyin 1. First open the Douyin software. After entering the homepage, we can see the recommended videos. Here we need to click the [three horizontal icons] in the upper left corner; 2. Then on the menu page You can view your commonly used mini programs and some information, we click [My Wallet]; 3. Then come to the My Wallet page where there are Douyin monthly payment, Douyin payment, mobile phone recharge and other services, directly click [ Douyin payment]; 4. Then enter Douyin

2024-06-25 comment 0 471

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