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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11273

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.

Shangxuetang MySQL video tutorial

Course Advanced 17597

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.

Band of Brothers front-end example display video tutorial

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Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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mysql - database table structure design

Describe the requirements: Now we need to design the database table structure. There are many types of rules. How to design tables to store these rules. Each rule has common attributes and different attributes. Currently, I think of two methods: the first is through foreign keys (common attributes of a table, regular...

2017-06-30 09:55:23

Regarding the problems encountered in chain operations, please give examples.

The article list uses a chain operation to associate the user table and the article table and uses volist to loop this data. When you click on this data to jump to the details page and pass an ID, you will find several problems: 1. The data time obtained by the chain cannot be automatically converted 2. How to get only one piece of data (ID) in chain operation 3. Regarding the writing method of chain where (when the ID of the details page = the same as the obtained ID, the PV traffic will automatically +1) Let’s take a look at the code I wrote: Please give me some guidance&

2018-12-18 09:27:07

How to sort query results according to fields of another table through chain operations in TP5

Specific situation: one user table and the other is a user level table. I query (select) the information of the user table and want to sort it according to the power field of the user level table. What I wrote myself is to query the records one by one through a for loop and then write them to In a two-dimensional array, it feels very unscientific to check the database as many times as there are pieces of data. Is there a better way to write multi-table queries? Related? In other words, query the information of people with IDs 3,5,2 and sort them by 3,5,2

2018-04-19 16:50:01

Create a trigger in a mysql stored procedure

I want to create a trigger in the process. But after some research I found this is not possible. Can you suggest me another way to achieve the following? (For some reason I can't share the exact data and query. Please refer to similar queries.) What I want I created a temporary table that contains the data I need. For example. CREATETEMPORARYTABLEtemp1SELECTid,col_1FROMtable1WHEREcol_1=2;When data is inserted into temp1, I want to insert data into table table2, I can

2024-02-25 19:35:21

node.js - How to best communicate with each other between http service and tcp service?

The project has a web background. The operations in the background issue instructions for the settings of the hardware devices. However, the hardware devices use the TCP protocol, so a separate TCP service is set up to communicate with the hardware and run in two separate processes. The information when the user operates in the background is passed What is the best way to communicate with tcp services?

2017-05-16 13:38:05

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Summary of common operations methods for JavaScript tables_javascript skills

Course Introduction：This article mainly introduces the common operation methods of JavaScript tables. The examples summarize common operation techniques such as creation, addition, deletion, and traversal of table operations in JavaScript. It has certain reference value. Friends who need it can refer to it.

2016-05-16 comment 0 1004

jquery common operation methods_jquery

Course Introduction：Script House has published more files such as jquery common operating methods, but everyone organizes them differently. You can refer to Script House’s previous articles and combine them.

2016-05-16 comment 0 920

Common operation methods of jQuery objects

Course Introduction：jQuery is a JavaScript library widely used in front-end development. It provides a wealth of operation methods to simplify tasks such as DOM manipulation, event processing, and animation effects. In this article, we will introduce some common jQuery object manipulation methods, and attach specific code examples for reference. 1. Create a jQuery object In jQuery, you can create a jQuery object in several different ways: Select elements through a selector: //Select all

2024-02-29 comment 0 469

Detailed explanation of how jquery operates data in tables

Course Introduction：This time I will bring you a detailed explanation of jquery's operation method of data in the table. What are the precautions for jquery's operation of data in the table? The following is a practical case, let's take a look.

2018-04-24 comment 0 1824

How to use jQuery to select and operate table

Course Introduction：This time I will show you how to use jQuery to select and operate a table, and what are the precautions for using jQuery to select and operate a table. The following is a practical case, let's take a look.

2018-03-15 comment 0 1502

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