MySQL – SUM() Function
The MySQL SUM() function calculates and returns the sum of all the fields in a particular column. If the specified row(s) doesn’t exist this function returns NULL.
Vishalini.R Answered question
MySQL – SUM() Function
The MySQL SUM() function calculates and returns the sum of all the fields in a particular column. If the specified row(s) doesn’t exist this function returns NULL.
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