不使用游标,多张表的多条记录更新
BEGINFOR c IN (select distinct t2.name,t1.idfrom table1 t1,table2 t2where t1.id = t2.id)LOOPupdate table1 set name = c.name where id = c.id;END LOOP;END;
BEGIN FOR c IN ( select distinct t2.name,t1.id from table1 t1, table2 t2 where t1.id = t2.id ) LOOP update table1 set name = c.name where id = c.id; END LOOP; END;

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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.

CrystalDiskMark is a small HDD benchmark tool for hard drives that quickly measures sequential and random read/write speeds. Next, let the editor introduce CrystalDiskMark to you and how to use crystaldiskmark~ 1. Introduction to CrystalDiskMark CrystalDiskMark is a widely used disk performance testing tool used to evaluate the read and write speed and performance of mechanical hard drives and solid-state drives (SSD). Random I/O performance. It is a free Windows application and provides a user-friendly interface and various test modes to evaluate different aspects of hard drive performance and is widely used in hardware reviews

foobar2000 is a software that can listen to music resources at any time. It brings you all kinds of music with lossless sound quality. The enhanced version of the music player allows you to get a more comprehensive and comfortable music experience. Its design concept is to play the advanced audio on the computer The device is transplanted to mobile phones to provide a more convenient and efficient music playback experience. The interface design is simple, clear and easy to use. It adopts a minimalist design style without too many decorations and cumbersome operations to get started quickly. It also supports a variety of skins and Theme, personalize settings according to your own preferences, and create an exclusive music player that supports the playback of multiple audio formats. It also supports the audio gain function to adjust the volume according to your own hearing conditions to avoid hearing damage caused by excessive volume. Next, let me help you

NetEase Mailbox, as an email address widely used by Chinese netizens, has always won the trust of users with its stable and efficient services. NetEase Mailbox Master is an email software specially created for mobile phone users. It greatly simplifies the process of sending and receiving emails and makes our email processing more convenient. So how to use NetEase Mailbox Master, and what specific functions it has. Below, the editor of this site will give you a detailed introduction, hoping to help you! First, you can search and download the NetEase Mailbox Master app in the mobile app store. Search for "NetEase Mailbox Master" in App Store or Baidu Mobile Assistant, and then follow the prompts to install it. After the download and installation is completed, we open the NetEase email account and log in. The login interface is as shown below

Cloud storage has become an indispensable part of our daily life and work nowadays. As one of the leading cloud storage services in China, Baidu Netdisk has won the favor of a large number of users with its powerful storage functions, efficient transmission speed and convenient operation experience. And whether you want to back up important files, share information, watch videos online, or listen to music, Baidu Cloud Disk can meet your needs. However, many users may not understand the specific use method of Baidu Netdisk app, so this tutorial will introduce in detail how to use Baidu Netdisk app. Users who are still confused can follow this article to learn more. ! How to use Baidu Cloud Network Disk: 1. Installation First, when downloading and installing Baidu Cloud software, please select the custom installation option.

MetaMask (also called Little Fox Wallet in Chinese) is a free and well-received encryption wallet software. Currently, BTCC supports binding to the MetaMask wallet. After binding, you can use the MetaMask wallet to quickly log in, store value, buy coins, etc., and you can also get 20 USDT trial bonus for the first time binding. In the BTCCMetaMask wallet tutorial, we will introduce in detail how to register and use MetaMask, and how to bind and use the Little Fox wallet in BTCC. What is MetaMask wallet? With over 30 million users, MetaMask Little Fox Wallet is one of the most popular cryptocurrency wallets today. It is free to use and can be installed on the network as an extension

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
