-- name: CreateCategoryGroup :one
INSERT INTO category_groups
(name, budget_id)
VALUES ($1, $2)
RETURNING *;

-- name: GetCategoryGroups :many
SELECT category_groups.* FROM category_groups 
WHERE category_groups.budget_id = $1;

-- name: CreateCategory :one
INSERT INTO categories
(name, category_group_id)
VALUES ($1, $2)
RETURNING *;

-- name: GetCategories :many
SELECT categories.*, category_groups.name as group FROM categories
INNER JOIN category_groups ON categories.category_group_id = category_groups.id
WHERE category_groups.budget_id = $1
ORDER BY category_groups.name, categories.name;