Course Intermediate  3465

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  12766

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  8086

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  45176

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 Elementary  2953

Course Introduction：Since WebSocket is a protocol for full-duplex communication on a single TCP connection, the browser and the server only need to complete a handshake to directly create a persistent connection and perform two-way data transmission, so the application scenarios of WebSocket are also increasing. The more extensive. Apipost 7 supports WebSocket, Socket.IO and Socket.JS type debugging, which can meet debugging in various scenarios.

Course Introduction：Solution to select blocking div

2016-05-16 comment 0  2127

Course Introduction：mcrypt_encrypt错误怎么 解决

2016-06-23 comment 0  1797

Course Introduction：Solution to Java Remote Method Invocation Exception (RemoteException) In Java development, remote method invocation is a common technology that can realize method invocation across the network. However, when using remote method calls, you sometimes encounter RemoteException exceptions, which are caused by network communication or server-side exceptions. This article will introduce some common methods to solve Java remote method call exceptions and provide relevant code examples. Solution 1: Check your network connection

2023-08-26 comment 0  2363

Course Introduction：Solution to decompression garbled code in java: 1. Use ant to solve the problem of zip decompression garbled code: use ZipFile(unZipFileName, "GB18030"); statement to set the encoding format. 2. Modify the encoding method of ZipInputStream for file names to solve the problem.

2019-11-26 comment 0  2763

Course Introduction：curl出错,错误码:58怎么解决

2016-06-20 comment 0  3371