10 recommended articles about technical tutorials

Query expansion is used to try to broaden the scope of the full-text search results returned. Consider the following situation. You want to find all comments that mention anvils. Only one comment contains the word anvils , but you also want to find all other lines that may be relevant to your search, even if they don't contain anvils . This is also a task of query expansion. When using query expansion, MySQL performs two scans of the data and index to complete the search: 1. First, a basic full-text search is performed to find all rows that match the search criteria; 2. Second, MySQL checks these matching rows and selects all useful words (we will briefly explain how MySQL determines what is useful and what is not). 3. Next, MySQL performs a full-text search again, this time not only using the original conditions, but also using all useful words. Query expansion lets you find results that may be relevant, even if they don't contain the exact words you're looking for. Only available in MySQL version 4.1.1 or higher. The query expansion feature was introduced in MySQL 4.1.1 and therefore cannot be used in previous versions. Here is an example. First, do a simple

1. mysql query expansion technology tutorial

Introduction: Query expansion is used to try to broaden the scope of the full-text search results returned. Consider the following situation. You want to find all comments that mention anvils. Only one comment contains the word anvils , but you also want to find all other lines that may be relevant to your search, even if they don't contain anvils . This is also a task of query expansion. When using query expansion, MySQL scans the data and index twice to complete the search:

2. Share a technical tutorial on lazy loading of front-end images

Introduction: I originally planned to write a blog about the detailed technology of delayed loading of front-end images yesterday afternoon. Unexpectedly, there were some problems with the company's project in the afternoon, so I have been changing the code for debugging. I ran outside all day today. It was already evening when I came back. I just finished my meal and wanted to catch up...

3. [ASP.NET MVC Mavericks Road]05 - Using Ninject

Introduction: Your location: Homepage> Programming Language> ASP.NET Technical Tutorial [New Benefits] Collect excellent articles and give away IT books for free Please enter keywords to search [ASP.NET MVC Mavericks Road] 05 - Using Ninject litt_j 2014-12-23 2 View 0 Comments Public original text Report Add refinement Add to favorites [ASP.NET MVC Mavericks Road] 05 - Use Ninject in [ASP.NET MVC Mavericks Road] series At the end of the previous article (Dependency Injection (DI) and Ninject), it was mentioned that in ASP.NET MVC

4. "CURL Technical Knowledge Tutorial" Series of Technical Tutorials Compilation

Introduction:: This article mainly introduces the "CURL Technical Knowledge Tutorial" series of technical tutorials. Students who are interested in PHP tutorials can refer to it.

5. 20 Key Points of PHP Programming Efficiency--PHP Technology Tutorial Sharing

Introduction: PHP Programming Efficiency 20 key points--PHP technology tutorial sharing

6. PHP Development Search Engine Technology Tutorial

Introduction: PHP development search engine technology allows us to design and develop a powerful and efficient search engine and database by ourselves. I am afraid that it is impossible in terms of technology and funds in a short time. However, since Yahoo is using other people’s technology, then should we Can you also use other people’s ready-made search engine websites?

7. PHP Get Script Running Time

Introduction: Provide web developers with the most complete technical tutorial articles related to PHP development, with the mission of improving the programming level of PHP enthusiasts

8. PHP file operation class (create files and write) generate logs

Introduction: Provide the most complete PHP for web developers Develop relevant technical tutorial articles, with the mission of improving the programming level of PHP enthusiasts

9. One of the design patterns in php - the intermediary pattern

Introduction: Provide web developers with the most complete technical tutorial articles related to PHP development, with the mission of improving the programming level of PHP enthusiasts

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