sum

Calculates the sum of numeric values.

Syntax

sum(num)

Arguments

num — Column of numeric values. (U)Int* or Float* or Decimal*

Returned value

Returns the sum of the values. (U)Int* or Float* or Decimal*

Examples

Computing sum of employee salaries

CREATE TABLE employees
(
    id UInt32,
    name String,
    salary UInt32
)
ENGINE = Memory;

INSERT INTO employees VALUES
    (87432, 'John Smith', 45680),
    (59018, 'Jane Smith', 72350),
    (20376, 'Ivan Ivanovich', 58900),
    (71245, 'Anastasia Ivanovna', 89210);

SELECT sum(salary) FROM employees;

┌─sum(salary)─┐
│      266140 │
└─────────────┘

Introduced in version 1.1.

studentTTestOneSample

Applies the one-sample Student's t-test to determine whether the mean of a sample differs from a known population mean.

sumCount

Calculates the sum of the numbers and counts the number of rows at the same time.