如何使用sql sum函数添加重复行

Question

几天前,我遇到了一个问题,我必须在MySql中总结一些重复行的值,我尝试了一些查询,但它们没有用.

这是表格数据: -

card_id     tic_id  game_id     card_symbol     card_symbol_no  qty
1           6           1           C                   6        2
2           6           1           H                   7        6
3           6           1           C                   6        7

我想要的输出是: -

card_id     tic_id  game_id     card_symbol     card_symbol_no  qty
1              6        1           C               6           (9)
2              6        1           H               7           (6)

其他一些因素: -
1.)"tic_id",&"game_id"是相同的.

Answer 1

select 
  min(card_id) as card_id, 
  tic_id, 
  game_id, 
  card_symbol, 
  card_symbol_no, 
  sum(qty) as qty
from 
  yourTabel
group by 
  tic_id, 
  game_id, 
  card_symbol, 
  card_symbol_no