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- How to implement multi-value association query through FIND_IN_SET?
- FIND_IN_SET: Unraveling the mystery of multi-value association query. Many friends will encounter a difficult problem in database operations: How to efficiently handle multi-value association query? For example, a user can have multiple tags. How to find users based on tags? This article will explore in-depth how to use MySQL's FIND_IN_SET function to gracefully solve this problem and reveal the pitfalls and optimization strategies behind it. Let's make it clear first: FIND_IN_SET is not the best solution for handling multi-value correlation queries. It has performance bottlenecks, especially when the data volume is huge. But understanding how it works and limitations is crucial for database design and optimization. It is more suitable for some special scenarios, such as small data volume
- Mysql Tutorial . Database 840 2025-04-08 09:33:01
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- APIs and Authentication on the Jamstack
- The first “A” in the Jamstack stands for “APIs” and is a key contributor to what makes working with static sites so powerful. APIs give developers the freedom
- CSS Tutorial . Web Front-end 729 2025-04-08 09:32:10
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- Configuration and conflict resolution of Galera Cluster multi-master cluster
- GaleraCluster is a database cluster architecture based on multi-master replication, with the advantage that all nodes can receive write requests at the same time. When building a Galera cluster, you need to pay attention to: 1. Ensure that the node resources are sufficient and the network is stable; 2. Carefully configure the my.cnf file, especially the wsrep_provider_options and gcache.size parameters; 3. Correctly initialize the cluster and monitor the logs. Even if the configuration is correct, conflicts may occur. They need to be resolved through log analysis and application layer policies, and performance can be improved through network optimization, parameter tuning and application layer optimization. Continuous monitoring and log analysis are key to maintaining Galera clusters.
- Mysql Tutorial . Database 503 2025-04-08 09:30:02
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- Auto-Growing Inputs & Textareas
- By default, and elements don't change size based on the content they contain. In fact, there isn't any simple HTML or CSS way
- CSS Tutorial . Web Front-end 503 2025-04-08 09:27:11
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- Windows System MySQL 8.0 installation-free configuration tutorial
- Configuration method for MySQL 8.0 installation-free version under Windows: 1. Unzip the downloaded compressed package to the specified directory; 2. Modify the my-default.ini file, configure basedir, datadir, port, character set and proofreading rules, and create a datadir directory; 3. Use the command line (cmd) to enter the bin directory, execute mysqld--install (optional) and netstartmysql to start the service. After the configuration is successful, you can use the client tool to connect to the database. It is recommended to modify the root password and perform secure configuration, and back up the data regularly.
- Mysql Tutorial . Database 541 2025-04-08 09:27:02
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- Some Typography Links II
- I just can't stop bookmarking great links related to typography. I'm afraid I'm going to have to subject you, yet again, to a bunch of them all grouped up. So
- CSS Tutorial . Web Front-end 689 2025-04-08 09:24:13
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- Cloudinary Studio
- I knew that Cloudinary worked with video as well as images but, the other day, I was curious if Cloudinary offered a video player embed just like other video
- CSS Tutorial . Web Front-end 199 2025-04-08 09:23:10
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- Building a Real-Time Chat App with React and Firebase
- In this article, we’ll cover key concepts for authenticating a user with Firebase in a real-time chat application. We’ll integrate third-party auth providers
- CSS Tutorial . Web Front-end 672 2025-04-08 09:19:09
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- Accessibility Links
- Austin Gil has kicked off the first in a five-part series about "HTML Forms Right" and to starts with semantics. It's talking to the "we build our front-ends
- CSS Tutorial . Web Front-end 642 2025-04-08 09:15:11
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- Creating Scheduled Push Notifications
- Scheduled is the key word there — that’s a fairly new thing! When a push notification is scheduled (i.e. “Take your pill” or “You’ve got a flight in 3 hours”)
- CSS Tutorial . Web Front-end 277 2025-04-08 09:14:10
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- Describe rate limiting techniques for PHP APIs.
- PHPAPI current limit can be implemented through fixed window counters, sliding window counters, leaky bucket algorithms and token bucket algorithms. 1. The fixed window counter limits the number of requests through the time window. 2. The sliding window counter refines the time window to provide more accurate current limiting. 3. The leaky bucket algorithm processes requests at a constant rate to prevent burst traffic. 4. The token bucket algorithm allows for a certain degree of burst traffic, and controls requests by consuming tokens.
- PHP Tutorial . Backend Development 436 2025-04-08 00:08:40
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- What is the difference between an abstract class and an interface in PHP?
- The main difference between an abstract class and an interface is that an abstract class can contain the implementation of a method, while an interface can only define the signature of a method. 1. Abstract class is defined using abstract keyword, which can contain abstract and concrete methods, suitable for providing default implementations and shared code. 2. The interface is defined using the interface keyword, which only contains method signatures, which is suitable for defining behavioral norms and multiple inheritance.
- PHP Tutorial . Backend Development 906 2025-04-08 00:08:21
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- Explain Cross-Site Scripting (XSS) and how to prevent it in PHP (htmlspecialchars).
- XSS is an attack that is executed in the user's browser by injecting malicious scripts. Using the htmlspecialchars function in PHP can effectively prevent XSS attacks: 1) htmlspecialchars converts special characters into HTML entities to prevent browsers from interpreting them as code; 2) When using in HTML attributes, quotation marks must be escaped using the ENT_QUOTES flag; 3) Combining other security measures, such as input verification and output encoding, multi-level protection is formed.
- PHP Tutorial . Backend Development 744 2025-04-08 00:04:30
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- Explain the difference between Statement-Based Replication (SBR), Row-Based Replication (RBR), and Mixed-Based Replication (MBR).
- There are three main ways of replication in MySQL: SBR, RBR and MBR. 1. SBR records SQL statements, which are suitable for standard operations, but may cause data inconsistency. 2. RBR records data changes to ensure consistency, but the log is large. 3.MBR combines the two and selects the method according to the SQL type, which is flexible but complex. Consistency, performance, and complexity are considered when choosing.
- Mysql Tutorial . Database 902 2025-04-08 00:04:00
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