cic-dw/queries/dashboard.sql

-- name: new-user-registrations
-- This query generates a date range and left joins the users table to include days with no registrations
-- Produces x, y results for displaying on a line chart
WITH date_range AS (
    SELECT day::date FROM generate_series($1, $2, INTERVAL '1 day') day
)

SELECT date_range.day AS x, COUNT(users.id) AS y
FROM date_range
LEFT JOIN users ON date_range.day = CAST(users.date_registered AS date)
GROUP BY date_range.day
ORDER BY date_range.day;

-- name: transactions-count
-- This query generates a date range and left joins the transactions table to include days with no transactions
-- Produces x, y results for displaying on a line chart
WITH date_range AS (
    SELECT day::date FROM generate_series($1, $2, INTERVAL '1 day') day
)

SELECT date_range.day AS x, COUNT(transactions.id) AS y
FROM date_range
LEFT JOIN transactions ON date_range.day = CAST(transactions.date_block AS date)
GROUP BY date_range.day
ORDER BY date_range.day;