Home > Website Builders > Cloud Servers

SQL Fetch duplicate record field value one record

Source: Internet
Author: User
Keywords Network programming Database synthesis
Tags file function get group name network network programming not included
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

SQL takes ABC field a record with the largest field value of a

Select Max (a), b,c from table name GROUP by b,c

The file is simple.

About Max

Max () function
The Max function returns the maximum value in a column. Null values are not included in the calculation.

SQL Max () syntax
Select Max (column_name) from table_name Note: Min and Max can also be used in text columns to get the highest or lowest value in alphabetical order.

Aggregate functions, such as sum, often need to add a group by statement.
GROUP BY statement
The GROUP BY statement is used to combine aggregate functions to group result sets based on one or more columns.

SQL GROUP BY syntax
Select column_name, aggregate_function (column_name)
From table_name
WHERE column_name operator value
GROUP BY column_name

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
select one record sql sql record how to find more than one record in sql sql select first record sql delete record sql update record sql if record exists
Related Article
Some suggestions for improving SQL execution efficiency
A collection of sophisticated SQL statement techniques
3 Steps to address SQL injection pitfalls
SQL Optimization Experience Summary 34
Search results sorted by matching fields

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

Hot Article
Hot Tags
computing conference access forum computer class data get http html applications
Popular Keywords
html add blank space register business logo register ssl certificate full site sign in sign up node js build cloud register register a subdomain in python network management system tutorial how to learn computer science by myself

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More