判断存在记录,并加锁防止其他进程新增或者更新
项目中一段保存配置weixinappid代码,都来吐几句吧 无 /** * 判断是否有$company_id公司的微信配置,并加锁,防止其他进程更新新增 */ public function exists_weixin_config_and_add_row_lock($company_id){ return $this-db-query( 'SELECT EXISTS( SELECT
项目中一段保存配置weixin appid代码,都来吐几句吧
/** * 判断是否有$company_id公司的微信配置,并加锁,防止其他进程更新新增 */ public function exists_weixin_config_and_add_row_lock($company_id){ return $this->db->query( 'SELECT EXISTS( SELECT * FROM weixin_config WHERE company_id = ? FOR UPDATE ) AS has', array($company_id))->row()->has == 1; }

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Blizzard Battle.net update keeps stuck at 45%, how to solve it? Recently, many people have been stuck at the 45% progress bar when updating software. They will still get stuck after restarting multiple times. So how to solve this situation? We can reinstall the client, switch regions, and delete files. To deal with it, this software tutorial will share the operation steps, hoping to help more people. Blizzard Battle.net update keeps stuck at 45%, how to solve it? 1. Client 1. First, you need to confirm that your client is the official version downloaded from the official website. 2. If not, users can enter the Asian server website to download. 3. After entering, click Download in the upper right corner. Note: Be sure not to select Simplified Chinese when installing.

Pinduoduo software provides a lot of good products, you can buy them anytime and anywhere, and the quality of each product is strictly controlled, every product is genuine, and there are many preferential shopping discounts, allowing everyone to shop online Simply can not stop. Enter your mobile phone number to log in online, add multiple delivery addresses and contact information online, and check the latest logistics trends at any time. Product sections of different categories are open, search and swipe up and down to purchase and place orders, and experience convenience without leaving home. With the online shopping service, you can also view all purchase records, including the goods you have purchased, and receive dozens of shopping red envelopes and coupons for free. Now the editor has provided Pinduoduo users with a detailed online way to view purchased product records. method. 1. Open your phone and click on the Pinduoduo icon.

Angular.js is a freely accessible JavaScript platform for creating dynamic applications. It allows you to express various aspects of your application quickly and clearly by extending the syntax of HTML as a template language. Angular.js provides a range of tools to help you write, update and test your code. Additionally, it provides many features such as routing and form management. This guide will discuss how to install Angular on Ubuntu24. First, you need to install Node.js. Node.js is a JavaScript running environment based on the ChromeV8 engine that allows you to run JavaScript code on the server side. To be in Ub

A friend's computer has such a fault. When opening "This PC" and the C drive file, it will prompt "Explorer.EXE Windows cannot access the specified device, path or file. You may not have the appropriate permissions to access the project." Including folders, files, This computer, Recycle Bin, etc., double-clicking will pop up such a window, and right-clicking to open it is normal. This is caused by a system update. If you also encounter this situation, the editor below will teach you how to solve it. 1. Open the registry editor Win+R and enter regedit, or right-click the start menu to run and enter regedit; 2. Locate the registry "Computer\HKEY_CLASSES_ROOT\PackagedCom\ClassInd"

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MSI graphics cards are the mainstream graphics card brand on the market. We know that graphics cards need to install drivers to achieve performance and ensure compatibility. So how to update the MSI graphics card driver to the latest version? Generally, MSI graphics card drivers can be downloaded and installed from the official website. Let’s find out more below. Graphics card driver update method: 1. First, we enter the "MSI official website". 2. After entering, click the "Search" button in the upper right corner and enter your graphics card model. 3. Then find the corresponding graphics card and click on the details page. 4. Then enter the "Technical Support" option above. 5.Finally go to “Driver & Download”

Windows updates may cause some of the following problems: 1. Compatibility issues: Some applications, drivers, or hardware devices may be incompatible with new Windows updates, causing them to not work properly or crash. 2. Performance issues: Sometimes, Windows updates may cause the system to become slower or experience performance degradation. This may be due to new features or improvements requiring more resources to run. 3. System stability issues: Some users reported that after installing Windows updates, the system may experience unexpected crashes or blue screen errors. 4. Data loss: In rare cases, Windows updates may cause data loss or file corruption. This is why before making any important updates, back up your

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