ReferenceSQL FunctionsAggregate FunctionsSUMOn this pageSUMSUMβ Descriptionβ Syntaxβ Sum (Expr) Used to return the sum of all values of the selected field exampleβ MySQL > select sum(scan_rows) from log_statis group by datetime;+------------------+| sum(`scan_rows`) |+------------------+| 8217360135 |+------------------+ keywordsβ SUM