我有一个表中给定的格式 +----+--------------+-----------+-----------+-----------+------------+
| ID | Student Name | Subject | Add Marks | Sub Marks | Cumulative |
+----+--------------+-----------+-----------+-
我试图做due_pis列的累加值,使用此: set @csum := 0;
select SUM(e.vl_taxe) as vl_taxe,
SUM(CASE WHEN e.hold_pis = 0 THEN e.due_pis ELSE 0 END) as total,
(@csum := @csum + SUM(CASE WHEN e.hold_pis = 0 THEN e.due_p