Table of Contents
回复内容:
Home Backend Development PHP Tutorial mysql 怎么统计七天内的订单,和每日的订单啊?

mysql 怎么统计七天内的订单,和每日的订单啊?

Jun 06, 2016 pm 08:11 PM
mysql php sql

我的订单表使用的create_time时间戳来表示下单时间的,如果取当日订单好计算,但是如果取七天内的订单呢?

如果我想要得到七天内的每一天的订单数量又该怎么计算呢?真是郁闷,希望大神解答下哈,谢谢了。

回复内容:

我的订单表使用的create_time时间戳来表示下单时间的,如果取当日订单好计算,但是如果取七天内的订单呢?

如果我想要得到七天内的每一天的订单数量又该怎么计算呢?真是郁闷,希望大神解答下哈,谢谢了。

七天内的订单:

<code>SELECT * FROM t_order  WHERE DATE_SUB(CURDATE(), INTERVAL 7 DAY) </code>
Copy after login

七天内每天的订单数量,先用where条件查出七天内的订单,再用group by 对每天进行分组就行了:

<code>SELECT DATE(create_time) createtime,COUNT(*) FROM t_order  WHERE DATE_SUB(CURDATE(), INTERVAL 7 DAY) </code>
Copy after login

循环取肯定不好,最起码不是最好的。

稍微进步点的:一下子取7天的,然后在代码中分割,代码中分割数组还是很快的。

如果数据量很大跑数组不现实,那就sql语句吧,一次性取出来也是可以的。

等高手展示sql。

你也可以将条件设置DATEDIFF(CURDATE(), create_time)

你要是让别人写,起码得告诉别人日期字段,销量字段等等是什么是吧

你要是问的话,那就只能用条件where了..

你可以在程序中先计算出一个日期,如果 strtotime(date('Y-m-d 00:00:00', strtotime('-7 days')) 得到7天前那天0点的时间戳,然后去where不就行了吗。

不建议用 MySQL 做统计,可以在每次生成一个订单时,把订单放到 redis 中
方案可以是每天一个集合.把每天的订单号都放到这个集合里
别管怎么统计,都很方便,比如统计某一天的订单,直接获取那天集合中的订单数据,不用走 MySQL

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

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
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)

Hot Topics

Java Tutorial
1666
14
PHP Tutorial
1271
29
C# Tutorial
1251
24
MySQL: The Database, phpMyAdmin: The Management Interface MySQL: The Database, phpMyAdmin: The Management Interface Apr 29, 2025 am 12:44 AM

MySQL and phpMyAdmin can be effectively managed through the following steps: 1. Create and delete database: Just click in phpMyAdmin to complete. 2. Manage tables: You can create tables, modify structures, and add indexes. 3. Data operation: Supports inserting, updating, deleting data and executing SQL queries. 4. Import and export data: Supports SQL, CSV, XML and other formats. 5. Optimization and monitoring: Use the OPTIMIZETABLE command to optimize tables and use query analyzers and monitoring tools to solve performance problems.

Composer: Aiding PHP Development Through AI Composer: Aiding PHP Development Through AI Apr 29, 2025 am 12:27 AM

AI can help optimize the use of Composer. Specific methods include: 1. Dependency management optimization: AI analyzes dependencies, recommends the best version combination, and reduces conflicts. 2. Automated code generation: AI generates composer.json files that conform to best practices. 3. Improve code quality: AI detects potential problems, provides optimization suggestions, and improves code quality. These methods are implemented through machine learning and natural language processing technologies to help developers improve efficiency and code quality.

How to uninstall MySQL and clean residual files How to uninstall MySQL and clean residual files Apr 29, 2025 pm 04:03 PM

To safely and thoroughly uninstall MySQL and clean all residual files, follow the following steps: 1. Stop MySQL service; 2. Uninstall MySQL packages; 3. Clean configuration files and data directories; 4. Verify that the uninstallation is thorough.

Steps to add and delete fields to MySQL tables Steps to add and delete fields to MySQL tables Apr 29, 2025 pm 04:15 PM

In MySQL, add fields using ALTERTABLEtable_nameADDCOLUMNnew_columnVARCHAR(255)AFTERexisting_column, delete fields using ALTERTABLEtable_nameDROPCOLUMNcolumn_to_drop. When adding fields, you need to specify a location to optimize query performance and data structure; before deleting fields, you need to confirm that the operation is irreversible; modifying table structure using online DDL, backup data, test environment, and low-load time periods is performance optimization and best practice.

What is the significance of the session_start() function? What is the significance of the session_start() function? May 03, 2025 am 12:18 AM

session_start()iscrucialinPHPformanagingusersessions.1)Itinitiatesanewsessionifnoneexists,2)resumesanexistingsession,and3)setsasessioncookieforcontinuityacrossrequests,enablingapplicationslikeuserauthenticationandpersonalizedcontent.

H5: Key Improvements in HTML5 H5: Key Improvements in HTML5 Apr 28, 2025 am 12:26 AM

HTML5 brings five key improvements: 1. Semantic tags improve code clarity and SEO effects; 2. Multimedia support simplifies video and audio embedding; 3. Form enhancement simplifies verification; 4. Offline and local storage improves user experience; 5. Canvas and graphics functions enhance the visualization of web pages.

An efficient way to batch insert data in MySQL An efficient way to batch insert data in MySQL Apr 29, 2025 pm 04:18 PM

Efficient methods for batch inserting data in MySQL include: 1. Using INSERTINTO...VALUES syntax, 2. Using LOADDATAINFILE command, 3. Using transaction processing, 4. Adjust batch size, 5. Disable indexing, 6. Using INSERTIGNORE or INSERT...ONDUPLICATEKEYUPDATE, these methods can significantly improve database operation efficiency.

How to use MySQL functions for data processing and calculation How to use MySQL functions for data processing and calculation Apr 29, 2025 pm 04:21 PM

MySQL functions can be used for data processing and calculation. 1. Basic usage includes string processing, date calculation and mathematical operations. 2. Advanced usage involves combining multiple functions to implement complex operations. 3. Performance optimization requires avoiding the use of functions in the WHERE clause and using GROUPBY and temporary tables.

See all articles