SQL 必知必会笔记8分组数据
1. 使用GROUP BY子句创建分组 示例: SELECT vend_id, COUNT ( * ) AS num_prods FROM Products GROUP BY vend_id;
1. 使用GROUP BY子句创建分组
示例:
SELECT vend_id, COUNT(*) AS num_prods FROM Products GROUP BY vend_id; ，网站空间，香港空间，网站空间
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1376
52
How to delete Xiaohongshu notes
Mar 21, 2024 pm 08:12 PM
How to delete Xiaohongshu notes? Notes can be edited in the Xiaohongshu APP. Most users don’t know how to delete Xiaohongshu notes. Next, the editor brings users pictures and texts on how to delete Xiaohongshu notes. Tutorial, interested users come and take a look! Xiaohongshu usage tutorial How to delete Xiaohongshu notes 1. First open the Xiaohongshu APP and enter the main page, select [Me] in the lower right corner to enter the special area; 2. Then in the My area, click on the note page shown in the picture below , select the note you want to delete; 3. Enter the note page, click [three dots] in the upper right corner; 4. Finally, the function bar will expand at the bottom, click [Delete] to complete.
Use ddrescue to recover data on Linux
Mar 20, 2024 pm 01:37 PM
DDREASE is a tool for recovering data from file or block devices such as hard drives, SSDs, RAM disks, CDs, DVDs and USB storage devices. It copies data from one block device to another, leaving corrupted data blocks behind and moving only good data blocks. ddreasue is a powerful recovery tool that is fully automated as it does not require any interference during recovery operations. Additionally, thanks to the ddasue map file, it can be stopped and resumed at any time. Other key features of DDREASE are as follows: It does not overwrite recovered data but fills the gaps in case of iterative recovery. However, it can be truncated if the tool is instructed to do so explicitly. Recover data from multiple files or blocks to a single
Open source! Beyond ZoeDepth! DepthFM: Fast and accurate monocular depth estimation!
Apr 03, 2024 pm 12:04 PM
0.What does this article do? We propose DepthFM: a versatile and fast state-of-the-art generative monocular depth estimation model. In addition to traditional depth estimation tasks, DepthFM also demonstrates state-of-the-art capabilities in downstream tasks such as depth inpainting. DepthFM is efficient and can synthesize depth maps within a few inference steps. Let’s read about this work together ~ 1. Paper information title: DepthFM: FastMonocularDepthEstimationwithFlowMatching Author: MingGui, JohannesS.Fischer, UlrichPrestel, PingchuanMa, Dmytr
How to use Excel filter function with multiple conditions
Feb 26, 2024 am 10:19 AM
If you need to know how to use filtering with multiple criteria in Excel, the following tutorial will guide you through the steps to ensure you can filter and sort your data effectively. Excel's filtering function is very powerful and can help you extract the information you need from large amounts of data. This function can filter data according to the conditions you set and display only the parts that meet the conditions, making data management more efficient. By using the filter function, you can quickly find target data, saving time in finding and organizing data. This function can not only be applied to simple data lists, but can also be filtered based on multiple conditions to help you locate the information you need more accurately. Overall, Excel’s filtering function is a very practical
What should I do if the notes I posted on Xiaohongshu are missing? What's the reason why the notes it just sent can't be found?
Mar 21, 2024 pm 09:30 PM
As a Xiaohongshu user, we have all encountered the situation where published notes suddenly disappeared, which is undoubtedly confusing and worrying. In this case, what should we do? This article will focus on the topic of "What to do if the notes published by Xiaohongshu are missing" and give you a detailed answer. 1. What should I do if the notes published by Xiaohongshu are missing? First, don't panic. If you find that your notes are missing, staying calm is key and don't panic. This may be caused by platform system failure or operational errors. Checking release records is easy. Just open the Xiaohongshu App and click "Me" → "Publish" → "All Publications" to view your own publishing records. Here you can easily find previously published notes. 3.Repost. If found
Google is ecstatic: JAX performance surpasses Pytorch and TensorFlow! It may become the fastest choice for GPU inference training
Apr 01, 2024 pm 07:46 PM
The performance of JAX, promoted by Google, has surpassed that of Pytorch and TensorFlow in recent benchmark tests, ranking first in 7 indicators. And the test was not done on the TPU with the best JAX performance. Although among developers, Pytorch is still more popular than Tensorflow. But in the future, perhaps more large models will be trained and run based on the JAX platform. Models Recently, the Keras team benchmarked three backends (TensorFlow, JAX, PyTorch) with the native PyTorch implementation and Keras2 with TensorFlow. First, they select a set of mainstream
Slow Cellular Data Internet Speeds on iPhone: Fixes
May 03, 2024 pm 09:01 PM
Facing lag, slow mobile data connection on iPhone? Typically, the strength of cellular internet on your phone depends on several factors such as region, cellular network type, roaming type, etc. There are some things you can do to get a faster, more reliable cellular Internet connection. Fix 1 – Force Restart iPhone Sometimes, force restarting your device just resets a lot of things, including the cellular connection. Step 1 – Just press the volume up key once and release. Next, press the Volume Down key and release it again. Step 2 – The next part of the process is to hold the button on the right side. Let the iPhone finish restarting. Enable cellular data and check network speed. Check again Fix 2 – Change data mode While 5G offers better network speeds, it works better when the signal is weaker
How to add product links in notes in Xiaohongshu Tutorial on adding product links in notes in Xiaohongshu
Mar 12, 2024 am 10:40 AM
How to add product links in notes in Xiaohongshu? In the Xiaohongshu app, users can not only browse various contents but also shop, so there is a lot of content about shopping recommendations and good product sharing in this app. If If you are an expert on this app, you can also share some shopping experiences, find merchants for cooperation, add links in notes, etc. Many people are willing to use this app for shopping, because it is not only convenient, but also has many Experts will make some recommendations. You can browse interesting content and see if there are any clothing products that suit you. Let’s take a look at how to add product links to notes! How to add product links to Xiaohongshu Notes Open the app on the desktop of your mobile phone. Click on the app homepage
