Course Intermediate  13550

Course Introduction：This course will use short and concise language to develop a mall in a modular manner to facilitate code reuse. There is no need to spend a lot of time learning other unrelated functions to implement one function. At the same time, all courses are combined into one The complete shopping mall project is very suitable for students to practice.

Course Intermediate  11349

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.

Course Advanced  17653

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Course Introduction：: PHP sub-database and sub-table hash algorithm: Copy the code code as follows: // Sub-database and sub-table algorithm function calc_hash_db($u, $s = 4) { $h = sprintf("%u", crc32($u)); $h1 = intval(fmod($h, $s)); return $h1; } for($i=1;$i<100;$i++) { echo calc_hash_db($i); echo "<br>"; } f

2016-07-29 comment 0  2042

Course Introduction：PHP is a commonly used programming language used to develop web applications. In modern web applications, data processing is a very important part. With the increasing use of data in web applications, data sharding and table sharding have become one of the basic technologies for data processing. In PHP applications, data sharding and table sharding are also a very important topic. Below we will introduce in detail the importance and implementation methods of data sharding and table sharding in PHP. 1. The importance of data sub-database and table sub-database There are two main methods of data sub-database and sub-table.

2023-05-23 comment 0  1907

Course Introduction：PHP sub-database and table hash algorithm. Copy the code as follows: //Sub-database and sub-table algorithm function calc_hash_db($u, $s = 4) { $h = sprintf("%u", crc32($u)); $h1 = intval(fmod($h , $s)); return $h1; } for($i=1;$i100;$i++) {

2016-07-21 comment 0  1477

Course Introduction：With the rapid development of the Internet and the continuous expansion of business scale, more and more enterprises are beginning to adopt microservice architecture. As an excellent microservice framework, SpringCloud not only implements service splitting and management, but also provides a series of efficient solutions. Database and table sharding is one of the important means to ensure system stability and scalability in times of high concurrency. This article will introduce how to implement sharding of databases and tables under the SpringCloud microservice architecture. 1. The principle of sub-database and sub-table. Before sub-database and sub-table, we first come

2023-06-22 comment 0  1728

Course Introduction：Table sharding is a good way to spread the pressure on the database. The most straightforward meaning of table partitioning is to divide a table structure into multiple tables, and then they can be placed in the same library or in different libraries. Of course, you first need to know under what circumstances you need to divide the table. Personally, I think that when the number of records in a single table reaches millions to tens of millions, it is necessary to use sub-tables. 1. Classification of sub-tables 1> Vertical sub-table artificially divides the content that could be in the same table into multiple tables. (The so-called original means that according to the requirements of the third paradigm of relational database, they should be in the same table.) Reason for splitting tables: According to

2017-03-11 comment 0  991