The following describes how to query and count the sum of a field in MYSQL:
SELECT sum ('field of value') FROM 'table name'
Articles you may be interested in
- How to sort the database query results in the alphabetic order of the first Chinese Characters
- Note the following when querying strings with single quotes and inserting strings with single quotes in Mysql:
- A classic dialogue between programmers and testers. These are shared by foreign programmers, who say they are used globally?
- Prohibit web page right-click, copy, save as, View Source file and other functions to implement web page source code protection
- MySQL index Operation Command (create index, re-index, query index, delete index) Summary
- How to obtain information about the Year, Zodiac, and constellation of the rule by using the date or timestamp in php
- Js array to string, js string to array method summary
- Php reads the Directory and lists the functions that display the files in the directory.