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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11270

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 17594

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 11306

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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jQuery implements mobile slider drag selection digital effect_javascript skills

Course Introduction：This article mainly introduces jQuery to realize the mobile slider dragging and selecting digital effect. jQuery realizes the mobile slider dragging effect. Interested friends can refer to it.

2016-05-16 comment 0 1552

jQuery plug-in slider implements dragging slider to select price range_jquery

Course Introduction：The jquery slider allows the user to select a value from a limited range. As the slider control is moved along the track, a tooltip representing the current value is displayed, and the user can customize the slider by setting its properties.

2016-05-16 comment 0 1344

jquery method to implement mouse dragging and sliding effect to select numbers_jquery

Course Introduction：This article mainly introduces jquery's method of implementing mouse dragging and sliding effects to select numbers. It involves related skills of jQuery mouse events. It has certain reference value. Friends who need it can refer to it.

2016-05-16 comment 0 1229

JS method of dragging the mouse to draw a box to realize mouse selection_javascript skills

Course Introduction：This article mainly introduces the method of dragging the mouse to draw a box using JS to realize mouse selection. It involves related techniques of javascript mouse events and page element styles. It has certain reference value. Friends in need can refer to it.

2016-05-16 comment 0 1874

JavaScript implements the function of clicking the left mouse button for area selection

Course Introduction：The example in this article describes the method of dragging the mouse to draw a box using JS to realize mouse selection. Share it with everyone for your reference. The details are as follows: A very practical JS skill. Drag the mouse to draw a box, which can be used as a selection function. It can be used to draw flow charts, design sketches, etc. It can also be used to crop and select pictures when uploading avatars. It is widely used in avatar cropping. Drag the mouse on the picture to pull out a box. This box represents the function of the selection. It is a popular operation on web pages. It mainly relies on JavaScript code to implement.

2017-09-14 comment 0 4298

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