SUM() Function in SQL Server
SUM() :
This function in SQL Server is used to compute the sum of the specified group of values.
Features :
- This function is used to compute the sum of the specified group of values.
- This function comes under Numeric Functions.
- This function accepts only one parameter namely expression.
- This function ignores the null value.
Syntax :
SUM(expression)
Parameter :
This method accepts one parameter.
- expression –
A specified expression which can either be a field or a given formula.
Returns :
It returns the sum of the specified group of values.
Example-1 :
Using SUM() function and getting the output.
CREATE TABLE product
(
user_id int IDENTITY(100, 2) NOT NULL,
product_1 VARCHAR(10),
product_2 VARCHAR(10),
price int
);
INSERT product(product_1, price)
VALUES ('rice', 400);
INSERT product(product_2, price)
VALUES ('grains', 600);
SELECT SUM(price) FROM product;
Output :
1000
Example-2 :
Using SUM() function and finding the sum of all the stated float values.
CREATE TABLE floats
(
user_id int IDENTITY(100, 2) NOT NULL,
float_val float
);
INSERT floats(float_val)
VALUES (3.6);
INSERT floats(float_val)
VALUES (2.1);
INSERT floats(float_val)
VALUES (6.3);
INSERT floats(float_val)
VALUES (9.0);
INSERT floats(float_val)
VALUES (7.0);
SELECT SUM(float_val) FROM floats;
Output :
28
Example-3 :
Using SUM() function and getting the output where MRP is less than the sum of all the MRP’s.
CREATE TABLE package
(
user_id int IDENTITY(100, 4) NOT NULL,
item VARCHAR(10),
mrp int
);
INSERT package(item, mrp)
VALUES ('book1', 3);
INSERT package(item, mrp)
VALUES ('book2', 350);
INSERT package(item, mrp)
VALUES ('book3', 400);
SELECT * FROM package
WHERE mrp < (SELECT SUM(mrp) FROM package);
Output :
| user_id | item | mrp
--------------------------------
1 | 100 | book1 | 3
--------------------------------
2 | 104 | book2 | 350
--------------------------------
3 | 108 | book3 | 400
Example-4 :
Using SUM() function and getting the sum of all the (MRP-sales price) values.
CREATE TABLE package
(
user_id int IDENTITY(100, 4) NOT NULL,
item VARCHAR(10),
mrp int,
sp int
);
INSERT package(item, mrp, sp)
VALUES ('book1', 250, 240);
INSERT package(item, mrp, sp)
VALUES ('book2', 350, 320);
INSERT package(item, mrp, sp)
VALUES ('book3', 400, 350);
SELECT SUM(mrp-sp) FROM package;
Output :
90
Application :
This function is used to compute the sum of the specified group of values.
Last Updated :
21 Jan, 2021
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