select sum until a specific line is found - mysql

Question

CREATE TABLE Coins (Badge VARCHAr(10), Cointype INT, Number INT);
INSERT INTO Coins (Badge,Cointype, Number) VALUES
('' , 1, 1),
('' , 5, 2),
('' , 20, 3),
('' , 1, 4),
('' , 5, 5),
('' , 5, 6),
('' , 5, 7),
('RESET', 0 , 0),
('' , 1, 8),
('' , 10, 9),
('RESET', 0 , 0),
('' , 5, 10),
('' , 20, 11);
Hi, with this table I want to have the following sum above the first line ('RESET',0,0)
select
SUM(case when Cointype=1 Then Number else 0 END) as SUM1,
SUM(case when Cointype=5 Then Number else 0 END) as SUM5,
SUM(case when Cointype=20 Then Number else 0 END) as SUM20
from Coins
result must be this:
SUM1 SUM5 SUM20
5 20 3
Is this possible in MySql?
in the real situation, there is also an ID and timestamp field. the top record is the most recent record with the highest ID and timestamp.
So the most recent records must summarized until the RESET line. (in case we need ordering, this is possible with the ID or timestamp field)
Then the table is like this:
CREATE TABLE Coins (ID INT, Badge VARCHAr(10), Cointype INT, Number INT);
INSERT INTO Coins (ID, Badge,Cointype, Number) VALUES
(13,'' , 1, 1),
(12,'' , 5, 2),
(11,'' , 20, 3),
(10,'' , 1, 4),
(9,'' , 5, 5),
(8,'' , 5, 6),
(7,'' , 5, 7),
(6,'RESET', 0 , 0),
(5,'' , 1, 8),
(4,'' , 10, 9),
(3,'RESET', 0 , 0),
(2,'' , 5, 10),
(1,'' , 20, 11);

Answer 1

If you have an autonumeric column:
SQL DEMO
select
SUM(case when Cointype=1 Then Number else 0 END) as SUM1,
SUM(case when Cointype=5 Then Number else 0 END) as SUM5,
SUM(case when Cointype=20 Then Number else 0 END) as SUM20
from Coins
WHERE ID < ( SELECT MIN(ID)
FROM Coins
WHERE Badge = 'RESET' )
OUTPUT
| SUM1 | SUM5 | SUM20 |
|------|------|-------|
| 5 | 20 | 3 |
EDIT:
After you change your sample looks like you have the rows in inverse order. Then you need MAX() instead of MIN()
select
SUM(case when Cointype=1 Then Number else 0 END) as SUM1,
SUM(case when Cointype=5 Then Number else 0 END) as SUM5,
SUM(case when Cointype=20 Then Number else 0 END) as SUM20
from Coins
WHERE ID > ( SELECT MAX(ID)
FROM Coins
WHERE Badge = 'RESET' )