Home Database Mysql Tutorial MySQL中的DATE_ADD应用场景_MySQL

MySQL中的DATE_ADD应用场景_MySQL

May 30, 2016 pm 05:10 PM
Scenes

MySQL中的DATE_ADD应用场景

 

/*当前时间加1毫秒*/
SELECT DATE_ADD(NOW(),INTERVAL 1 MICROSECOND);


/*当前时间减1毫秒*/
SELECT DATE_ADD(NOW(),INTERVAL -1 MICROSECOND);


/*当前时间加1秒*/
SELECT DATE_ADD(NOW(),INTERVAL 1 SECOND);


/*当前时间减1秒*/
SELECT DATE_ADD(NOW(),INTERVAL -1 SECOND);


/*当前时间加1分*/
SELECT DATE_ADD(NOW(),INTERVAL 1 MINUTE);


/*当前时间减1分*/
SELECT DATE_ADD(NOW(),INTERVAL -1 MINUTE);


/*当前时间加1小时*/
SELECT DATE_ADD(NOW(),INTERVAL 1 HOUR);


/*当前时间减1小时*/
SELECT DATE_ADD(NOW(),INTERVAL -1 HOUR);


/*当前日期加1天*/
SELECT DATE_ADD(NOW(),INTERVAL 1 DAY);


/*当前日期减1天*/
SELECT DATE_ADD(NOW(),INTERVAL -1 DAY);


/*当前日期加1月*/
SELECT DATE_ADD(NOW(),INTERVAL 1 MONTH);


/*当前日期减1月*/
SELECT DATE_ADD(NOW(),INTERVAL -1 MONTH);


/*当前日期加1季度*/
SELECT DATE_ADD(NOW(),INTERVAL 1 QUARTER);


/*当前日期减1季度*/
SELECT DATE_ADD(NOW(),INTERVAL -1 QUARTER);


/*当前日期加1年*/
SELECT DATE_ADD(NOW(),INTERVAL 1 YEAR);


/*当前日期减1年*/
SELECT DATE_ADD(NOW(),INTERVAL -1 YEAR);

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to solve the long tail problem in autonomous driving scenarios? How to solve the long tail problem in autonomous driving scenarios? Jun 02, 2024 pm 02:44 PM

Yesterday during the interview, I was asked whether I had done any long-tail related questions, so I thought I would give a brief summary. The long-tail problem of autonomous driving refers to edge cases in autonomous vehicles, that is, possible scenarios with a low probability of occurrence. The perceived long-tail problem is one of the main reasons currently limiting the operational design domain of single-vehicle intelligent autonomous vehicles. The underlying architecture and most technical issues of autonomous driving have been solved, and the remaining 5% of long-tail problems have gradually become the key to restricting the development of autonomous driving. These problems include a variety of fragmented scenarios, extreme situations, and unpredictable human behavior. The "long tail" of edge scenarios in autonomous driving refers to edge cases in autonomous vehicles (AVs). Edge cases are possible scenarios with a low probability of occurrence. these rare events

In what scenarios does ClassCastException occur in Java? In what scenarios does ClassCastException occur in Java? Jun 25, 2023 pm 09:19 PM

Java is a strongly typed language that requires data type matching at runtime. Due to Java's strict type conversion mechanism, if there is a data type mismatch in the code, a ClassCastException will occur. ClassCastException is one of the very common exceptions in the Java language. This article will introduce the causes of ClassCastException and how to avoid it. What is ClassCastException

Have you used these stress testing tools for Linux systems? Have you used these stress testing tools for Linux systems? Mar 21, 2024 pm 04:12 PM

As an operation and maintenance personnel, have you ever encountered this scenario? You need to use tools to test high system CPU or memory usage to trigger alarms, or test the concurrency capabilities of the service through stress testing. As an operation and maintenance engineer, you can also use these commands to reproduce fault scenarios. Then this article can help you master commonly used testing commands and tools. 1. Introduction In some cases, in order to locate and reproduce problems in the project, tools must be used to conduct systematic stress testing to simulate and restore fault scenarios. At this time testing or stress testing tools become particularly important. Next, we will explore the use of these tools according to different scenarios. 2. Test Tools 2.1 Network speed limiting tool tctc is a command line tool used to adjust network parameters in Linux. It can be used to simulate various networks.

In two sentences, let AI generate VR scenes! Or the kind of 3D or HDR panorama? In two sentences, let AI generate VR scenes! Or the kind of 3D or HDR panorama? Apr 12, 2023 am 09:46 AM

​Big Data Digest Produced by: Caleb Recently, ChatGPT can be said to be extremely popular. On November 30, OpenAI released the chat robot ChatGPT and opened it to the public for free for testing. Since then, it has been widely used in China. To talk to a robot is to ask the robot to execute a certain instruction, such as entering a keyword and letting the AI ​​generate the corresponding picture. This doesn’t seem to be unusual. Didn’t OpenAI also update a new version of DALL-E in April? OpenAI, how old are you? (Why is it always you?) What if Digest said that the generated images are 3D images, HDR panoramas, or VR-based image content? Recently, Singapore

Learn to use common Kafka commands and flexibly respond to various scenarios. Learn to use common Kafka commands and flexibly respond to various scenarios. Jan 31, 2024 pm 09:22 PM

Essentials for learning Kafka: master common commands and easily cope with various scenarios 1. Create Topicbin/kafka-topics.sh--create--topicmy-topic--partitions3--replication-factor22. List Topicbin/kafka-topics.sh --list3. View Topic details bin/kafka-to

Let's talk about the model fusion method of large models Let's talk about the model fusion method of large models Mar 11, 2024 pm 01:10 PM

In previous practices, model fusion has been widely used, especially in discriminant models, where it is considered a method that can steadily improve performance. However, for generative language models, the way they operate is not as straightforward as for discriminative models because of the decoding process involved. In addition, due to the increase in the number of parameters of large models, in scenarios with larger parameter scales, the methods that can be considered by simple ensemble learning are more limited than low-parameter machine learning, such as classic stacking, boosting and other methods, because stacking models The parameter problem cannot be easily expanded. Therefore, ensemble learning for large models requires careful consideration. Below we explain five basic integration methods, namely model integration, probabilistic integration, grafting learning, crowdsourcing voting, and MOE

DifFlow3D: New SOTA for scene flow estimation, the diffusion model has another success! DifFlow3D: New SOTA for scene flow estimation, the diffusion model has another success! Mar 28, 2024 pm 02:00 PM

Original title: DifFlow3D: TowardRobustUncertainty-AwareSceneFlowEstimationwithIterativeDiffusion-BasedRefinement Paper link: https://arxiv.org/pdf/2311.17456.pdf Code link: https://github.com/IRMVLab/DifFlow3D Author affiliation: Shanghai Jiao Tong University, Cambridge University, Zhejiang University Thesis idea of ​​forensic robot: Scene flow estimation aims to predict the 3D displacement change of each point in the dynamic scene. It is a basic task in the field of computer vision.

Real-time rendering: dynamic urban scene modeling based on Street Gaussians Real-time rendering: dynamic urban scene modeling based on Street Gaussians Jan 08, 2024 pm 01:49 PM

To be honest, the speed of technology update is indeed very fast, which has also led to some old methods in academia being gradually replaced by new methods. Recently, a research team from Zhejiang University proposed a new method called Gaussians, which has attracted widespread attention. This method has unique advantages in solving problems and has been successfully used in work. Although Nerf has gradually lost some influence in academia. In order to help players who have not yet passed the level, let's take a look at the specific methods of solving puzzles in the game. To help players who have not passed the level yet, we can learn about the specific puzzle-solving methods together. For this purpose, I found a paper on puzzle solving, the link is here: https://arxiv.org/pdf/2

See all articles