SQL SUM

Example Data Table : Orders (All of the below examples use this table as datasource)
Keyid OrderNo CustomerName SalePrice Quantity OrderDate
1 20101213095 John 3500 10 2010-12-13
2 20100620135 Jimmy 2509 22 2010-06-20
3 20100620392 Vincent 7200 5 2010-06-20
4 20100530006 Tyler 9200 50 2010-05-30
5 20100515129 Alan 100 50 2010-05-29
6 20100509059 John 2000 15 2010-05-09
7 20100503088 Alan 2200 17 2010-05-03


Example
To calculate the sum of a column
 
Sytax : SELECT SUM(column_name) FROM table_name
SQL
SELECT SUM(SalePrice) FROM Orders

will output
SalePrice
26509
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