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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11333

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 17638

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

Course Advanced 11350

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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Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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How to use jquery to achieve linkage between provinces and municipalities

Course Introduction：How to use jquery to realize linkage between provinces and municipalities: 1. Create an HTML sample file; 2. In the js file, pass "$(function() {for(var i = 0; i < prvo.length; i++) {.. .}}" method to achieve linkage between provinces and municipalities.

2021-12-01 comment 0 3987

jquery plug-in autoComboBox drop-down box_jquery

Course Introduction：How do you do drop-down box linkage between provinces and municipalities, product category linkage, or department linkage? Should you use ajaxpro.dll or jquery ajax?

2016-05-16 comment 0 1356

PHP city-linked classification sorting program_PHP tutorial

Course Introduction：PHP prefecture-city linkage classification sorting program. A netizen wrote a PHP classification program for linking prefectures and cities. You can refer to it. Write a function to convert the data. The code is as follows. Copy the code $array = array( 0=array(,Hebei), 1=array(,Beijing),

2016-07-13 comment 0 931

How to make a secondary linkage drop-down menu in wps How to set up a secondary linkage drop-down menu option in wps

Course Introduction：We will need to make a drop-down menu when using WPS tables, so many users are asking how to make a WPS secondary linkage drop-down menu? Users who are unclear can take a look at the relevant strategies on how to set up secondary linkage drop-down menu options in WPS brought to you by this website. How to set the secondary linkage drop-down menu option in WPS Method 1. Open the WPS table, select the secondary linkage menu corresponding table, use the key combination [CtrI+G] to open the positioning dialog box, select [Constant], and click [Position]. 2. Click [Specify] under the [Formula] menu. 3. Select [First Line] in the pop-up dialog box and click [OK]. 4. Select the [Province] column, click [Data] - [Validity], select [Sequence], and select [Source]

2024-09-05 comment 0 503

JSON Jquery three-level linkage between provinces and municipalities_jquery

Course Introduction：This article mainly introduces the relevant information on the three-level linkage of provinces and municipalities with JSON Jquery. Friends in need can refer to it.

2016-05-16 comment 0 1571

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