Course Intermediate 3366
Course Introduction:This set of courses is based on the design concept and data structure of MySQL index, index usage scenarios, index classification, index usage scenarios, index performance analysis, query optimization, slow query of MySQL index, etc. It mainly describes the solution of MySQL index optimization. It is very suitable for students who have basic knowledge of MySQL or have certain work experience. The course explains how to solve the problem of slow large-volume queries, how to write an efficient SQL, how to optimize query statements, what is the implementation principle of indexes, how to optimize indexes... and many other difficulties and interview points in SQL index optimization.
Course Elementary 12608
Course Introduction:"AJAX Cross-Domain Solution: JSONP Video Tutorial" The core of ajax is the JavaScript object XmlHttpRequest. This object was first introduced in Internet Explorer 5 and is a technology that supports asynchronous requests. This video introduces the ajax cross-domain solution.
Course Intermediate 7953
Course Introduction:Caching is a core component of current enterprise-level applications. Today's mainstream e-commerce, life services, live broadcast and other fields are inseparable from the use of cache. As the current mainstream caching technology, Redis has become the first choice for Internet companies. The cache structure design based on redis cluster currently accounts for half of the market in the same field.
Course Advanced 43936
Course Introduction:This set of courses is an advanced course, including: query optimization and performance analysis of MySQL single table with tens of millions of data, mySQL master-slave principle and its application in high-concurrency systems, integration and use of Elasticsearch and PHP (Laravel), high concurrency The difference between system code and ordinary system code architecture and analysis of concerns, etc.
Course Intermediate 10961
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.
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Course Introduction:Solution to JavaXML parsing failure exception (XMLParsingFailureException) In Java development, we often need to interact and parse XML documents. But sometimes, when we try to parse an XML document, we may encounter an XMLParsingFailureException exception. This article will describe the cause of this exception and provide several solutions to solve the problem. 1. Analysis of abnormal causes XMLParsi
2023-08-18 comment 0 3261
Course Introduction:Build real-time data analysis solutions using MySQL and PostgreSQL With the advent of the big data era, data analysis has become more and more important. Real-time data analysis can help companies make correct decisions in a rapidly changing market environment. In this article, we will introduce how to build real-time data analysis solutions using MySQL and PostgreSQL, two popular open source relational databases. MySQL is a powerful relational database management system that is widely used in various enterprise solutions.
2023-07-12 comment 0 1077
Course Introduction:Solution introduction to solving Java XML parsing exceptions (XMLParsingException): When processing XML files, we often encounter XML parsing exceptions (XMLParsingException). This is caused by XML file format errors or incorrect XML parser configuration. This article will introduce some common XML parsing exceptions and solutions to help developers better deal with these problems. 1. The cause of XML parsing exception is parsing XML document.
2023-08-19 comment 0 2637
Course Introduction:Title: Analysis and solutions to the causes of Oracle garbled code prompts. In the process of using Oracle database, we often encounter the problem of garbled code display, which not only affects the correctness of the data, but also causes trouble in data processing and display. This article will start with an analysis of the causes of Oracle garbled characters, discuss solutions, and provide specific code examples to help readers better understand and solve such problems. 1. Problem Cause Analysis The main reasons for garbled characters in Oracle database are as follows: 1.1 Character set mismatch
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Course Introduction:Solution to Java time parsing exception (TimeParsingException) In Java development, time parsing and format conversion are frequently encountered problems. Especially when it comes to getting a time string from user input or an external system and parsing it into a Java time object, a TimeParsingException may occur. This article describes some common solutions and provides corresponding code examples. When using SimpleDateFormat
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