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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11340

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 17646

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 11353

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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Xiaomi MIX Fold 4 folding screen mobile phone unveiled: thin and light body, four rear Leica cameras

Course Introduction：Thanks to netizens Qianruo Xiamo, Eddie Xiang, and StarDevOps for submitting clues! According to news on July 16, Xiaomi officially released a warm-up video of the MIX Fold4 folding screen mobile phone today. It announced the appearance and blue color of the mobile phone for the first time, and called it a "fully equipped flagship with big discounts." 1. Appearance: Xiaomi MIX Fold 4 adopts a thin and light body design and the color is blue. The back cover is decorated with bright spots, and the camera module is pure black with a round shape. The module has four built-in Leica cameras. Internal screen: Xiaomi MIX Fold4 adopts an internal folding solution. There is a camera in the upper left corner of the inner screen. Xiaomi MIX Fold 4 folding screen mobile phone has passed 3C network access certification, and the back rendering has also been exposed. The aircraft supports Tiantong satellite communications, 5G-enhanced mobile broadband

2024-07-17 comment 0 1114

Is vivos15e a 5g mobile phone?

Course Introduction：vivo S15e is a 5G mobile phone. The network types supported by the mobile phone include 5G, 4G, and 3G. The vivo S15e uses a 6.44-inch AMOLED screen. It comes in three colors: rime gold, ice crystal blue, and fluorite black. The height is about 159.7 mm and the width is about 73.6 mm, the thickness of rime gold is 10.31 mm, the thickness of ice crystal blue and fluorite black is 8.49 mm, the weight of rime gold is 190.8 grams, the weight of ice crystal blue and fluorite black is 189.8 grams.

2022-11-14 comment 0 7919

Samsung Galaxy Z Fold6 / Flip6 folding screen mobile phone Chinese version revealed to be launched on July 26

Course Introduction：According to news on June 29th, blogger @SETANADigital broke the news today that the Chinese version of Samsung Galaxy ZFold6/Flip6 folding screen mobile phone is expected to be launched on July 26th. Prior to this, Samsung has officially announced that it will hold a Galaxy Unpacked conference in Paris, France at 21:00 on July 10, Beijing time. This event will be broadcast live online and will release Galaxy Z Fold6, Galaxy Z Flip 6 folding screen mobile phones, Galaxy Buds 3 series headphones, Galaxy Watch 7/ Ultra smart watches and other products. At present, the appearance renderings of the Galaxy Z Fold6/Flip6 folding screen mobile phone have been leaked. The large folding screen is available in silver, navy blue and pink.

2024-06-29 comment 0 739

Meizu mobile phone screen price

Course Introduction：The screen of Meizu mobile phone is broken, how much does it cost to replace it? 1. Then, according to the survey, if the screen of your Meizu mobile phone is only slightly damaged on the outer screen, then its repair cost is generally controlled at about 100 yuan; If the inner screen of the screen is completely damaged, the cost of replacing the screen is generally between 300 yuan and 500 yuan. 2. Hello, the guided price for returning Meizu Note2 screen (panel assembly) to the factory for repair outside of warranty is 250 yuan, and the repair labor cost is 40 yuan. Specific prices can be found on Meizu’s official website. 3. If the external screen of this phone is broken, the price of replacing the original screen is between 200 and 300. It is not the same everywhere. Replacing both the inside and outside together costs about 400. How much does it cost to replace the screen of Meizu mobile phone? What should I do if the screen of my mobile phone is broken? Then, according to the survey

2024-05-09 comment 0 920

jkmal00bWhat model is Huawei?

Course Introduction：jkmal00bHuawei is the "Huawei Enjoy 9 Plus All-Network High-end Edition" model. Huawei Enjoy 9 Plus is a mobile phone released by Huawei at Xi'an Jiaotong University on October 15, 2018; its screen uses a 6.5-inch TFT LCD (IPS) screen ; The height is about 162.4 mm, the width is about 77.1 mm, the thickness is about 8.05 mm, and the weight is about 173 grams. It comes in four colors: Magic Night Black, Sapphire Blue, Aurora Purple, and Sakura Pink.

2022-11-22 comment 0 126525

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