I've been working with some interesting data puzzles recently and it got me thinking of some little challenges to try and solve in T-SQL.
So here's one:
I'm stumped on how to approach this one, any ideas?
Good luck!
So here's one:
Code:
DECLARE @x table (
id int
, price money
)
INSERT INTO @x (id, price)
VALUES (1, 1.0)
, (2, 1.0)
, (3, 1.0)
, (4, 1.5)
, (5, 1.5)
, (6, 2.0)
, (7, 2.5)
, (8, 2.5)
, (9, 3.5)
DECLARE @target money = 3.0
/*
Aim: find all combinations of items that when
added together equal the target amount.
Expected results if @target = 2.5:
1, 4
1, 5
2, 4
2, 5
3, 4
3, 5
7
8
Expected results if @target = 3.0:
1, 2, 3
1, 6
2, 6
3, 6
4, 5
Expected results if @target = 3.5:
1, 2, 4
1, 3, 4
2, 3, 4
1, 2, 5
1, 3, 5
2, 3, 5
4, 6
5, 6
1, 7
1, 8
2, 7
2, 8
3, 7
3, 8
9
*/Good luck!