Aggregates

NoQL supports standard SQL aggregate functions with GROUP BY like SUM,AVG,MAX and MIN.

Aggregate results are returned as arrays for FIRSTN and LASTN.

Supported Aggregate Functions

SUM

SUM(field)

Returns the sum of all values in the given field.

Example SUM usage

SELECT 
    SUM(`id`) AS aggrVal
    ,`Address.City` AS City 
FROM 
    `customers` 
GROUP BY 
    `Address.City` 
ORDER BY `Address.City`;

AVG

AVG(field)

Returns the average of all values in the given field.

Example AVG usage

SELECT
    AVG(`id`) AS aggrVal
    ,`Address.City` AS City
FROM
    `customers`
GROUP BY 
    `Address.City`
ORDER BY 
    `Address.City`;

MIN

MIN(field)

Returns the minimum value in the given field.

Example MIN usage

SELECT
    MIN(`id`) AS aggrVal
    ,`Address.City` AS City
FROM 
    `customers`
GROUP BY
    `Address.City`
ORDER BY
    `Address.City`;

MAX

MAX(field)

Returns the maximum value in the given field.

Example MAX usage

SELECT 
    MAX(`id`) AS aggrVal
    ,`Address.City` AS City
FROM
    `customers`
GROUP BY
    `Address.City`
ORDER BY
    `Address.City`;

COUNT

COUNT(field)

Returns the count of rows in the given group.

Example COUNT usage

SELECT 
    COUNT(*) AS countVal
    ,`Address.City` AS City
FROM
    `customers`
GROUP BY
    `Address.City`
ORDER BY
    `Address.City`;

COUNT DISTINCT

COUNT(DISTINCT field)

Returns the distinct count of a specific field in the given group.

Example COUNT DISTINCT usage

SELECT 
    COUNT(DISTINCT `Address.Town`) AS countVal
    ,`Address.City` AS City
FROM
    `customers`
GROUP BY
    `Address.City`
ORDER BY
    `Address.City`;

FIRSTN

FIRSTN(limit)

Returns the first n records in the group as an array

Example FIRSTN usage

SELECT
    `Address.City` AS City
    ,FIRSTN(10) as CustomersPerCity
FROM 
    `customers`
GROUP BY
    `Address.City`;

LASTN

LASTN(limit)

Returns the last n records in the group as an array

Example LASTN usage

SELECT
    `Address.City` AS City
    ,LASTN(10) as CustomersPerCity
FROM 
    `customers`
GROUP BY
    `Address.City`;

SUM - CASE Logic

Sum Case logic is supported:

Example SUM - CASE usage

SELECT 
    SUM(CASE WHEN `Address.City`='Ueda' THEN 1 ELSE 0 END) AS Ueda
    ,SUM(CASE WHEN `Address.City`='Tete' THEN 1 ELSE 0 END) AS Tete 
FROM 
    `customers`