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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11251

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 17584

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 11299

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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USDT TRC20 transaction failed due to insufficient energy

I try to broadcast some USDT transactions every day, and after a few days, I receive OUT_OF_ENERGY messages for some transactions. I make some trades every day, sometimes I make about 30 trades. First, I tried staking about 20kTRX to gain energy and bandwidth, but it was not enough. When I triggered the transaction using a PHP script based on Trongrid documentation, it showed the fee limit as 10, so I increased the fee limit to 15TRX (15MSUN) but still no TRX was used to submit the transaction. But if I withdraw manually from TronLink wallet

2023-12-24 20:46:43

php - Ask me about mysql transactions, locks and transactions?

For example, if the account balance is 100 yuan, and if the balance is greater than the transaction amount during the transaction, the transaction will be successful. Now assuming that this user has multiple transactions at the same time, problems will occur during detection. Question: I would like to ask if using the SERIERLIZED isolation level of the transaction can solve this problem at this time...

2017-06-24 09:41:23

Method to find transaction expiry date in related table

I have a taxonomy table with different transaction categories. Each category contains a number of transactions along with their expiry dates. I want to access only those transactions and their categories whose expiry date has not yet expired, but I'm running into an issue where if transactions of a certain category exist within the time range, then all transactions will arrive regardless of whether they have expired or not. This is my code: $deals=DealCategory::where('name','!=','Today's Deal')->whereRelation('deals','sta

2023-09-13 16:19:38

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How to trade Bitcoin to USD

Course Introduction：You can trade Bitcoin to USD by following these steps: Register and deposit Bitcoin on an exchange (such as Coinbase); Find the Bitcoin/USD trading pair and enter the sale amount; Click "Sell" to complete the transaction and have the USD credited to you exchange account; alternatively, use a peer-to-peer trading platform (such as LocalBitcoins) to post a sell order and wait for the buyer to contact; after confirming receipt of the USD payment, release the Bitcoin; alternatively, use a third-party service (such as Changelly) to enter the Bitcoin address and For the USD receiving address, the platform will handle the exchange.

2024-10-11 comment 0 505

Trading volume ranking of currency exchanges

Course Introduction：According to data from CoinMarketCap in March 2023, the cryptocurrency exchanges with the largest trading volume in the world are: Binance: Trading volume exceeds 1.5 trillion US dollars Huobi Global: Trading volume exceeds 300 billion US dollars OKX: Trading volume exceeds 200 billion US dollars Bybit: Trading Volume approaches $150 billion Gate.io: Transaction volume exceeds $120 billion KuCoin: Transaction volume exceeds $110 billion Kraken: Transaction volume exceeds $100 billion Gemini: Transaction volume approaches $100 billion Bitfinex: Transaction volume exceeds 9

2024-07-10 comment 0 998

Uniswap's total historical transaction volume reaches US$2 trillion

Course Introduction：Decentralized exchange Uniswap has seen its trading volume exceed $2 trillion since its launch five and a half years ago. According to data from DuneAnalytics, Uniswap’s trading volume crossed a significant level on April 5. Before setting the new record, the Uniswap team released a message stating that $2 trillion in trading volume would be reached within 24 hours. UniswapLabs said it will transfer 200 USD tokens (USDC) to the first person to record and send the company a video clip, which updated the DuneAnalytics dashboard to show that Uniswap’s trading volume has exceeded $200 million. DefiLlama data shows that Uniswap is the most popular

2024-04-06 comment 0 1125

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