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  6955

Course Introduction：How to tune SQL according to execution plan under massive data? How does the mysql index system cope with massive data storage? How to design a mysql index with excellent performance under massive data Full analysis of clustered index and non-clustered index of mysql Must-ask nouns in mysql index interview: table return, index coverage, leftmost matching How to optimize indexes for specific SQL scenarios

Course Introduction：Solution Explorer: Incomplete solution for Solution Explorer auto-pagination: test code <form id="form1" name="form1" method="post" action=""> <textarea name="content" cols="60" rows="10"></textarea> <input type="submit" name="Submit" value="Submit" /> </f

2016-07-29 comment 0  1215

Course Introduction：laravel, solution: Laravel error solution: ① Laravel5 routing home cannot be accessed. Set all AllowOverride none in the apache configuration file; set to AllowOverride all; the specific location of the configuration file changes due to different systems. The ubuntu14.0.1LTS version is in /etc/ apache2/apache2.conf file. ②500 error After installing laravel, a 500 error occurred immediately after opening it. The configuration was correct, but a 500 error occurred---------

2016-07-29 comment 0  1127

Course Introduction：MySQL sequence solution

2016-11-12 comment 0  1192

Course Introduction：Solutions for PS installation failure: 1. System compatibility issues, solution: replace with a suitable system; 2. The system does not match the version, solution: replace the PS corresponding to the system; 3. The remaining PS version is not uninstalled cleanly, solution: use a professional The uninstall tool cleans the uninstallation residue.

2019-06-14 comment 0  19503