帮助SQL总计和总和

Question

我有这个SQL.我不确定它是我需要的,但它确实选择了我需要的所有记录.我现在只需要压缩它们并计算唯一日期的计数和金额.

select m.account_tag, m.cmcl_forecast_cleared, m.check_amount,  
a.acct_id, a.acct_no, a.bank_id,  
b.bank_id, b.name  
from ap_master m   
join accounts a on a.acct_id=m.account_tag  
join banks b on b.bank_id=a.bank_id  
where m.cmcl_bank_cleared is null 
order by m.account_tag, m.cmcl_forecast_cleared  

我只想显示四列Account,Date,Count和sum

该帐户将是a.acct_no.
日期将是该帐户
的所有唯一m.cmcl_forecast_cleared日期计数将是这些唯一日期的检查(记录)
的总数(cmcl_forecast_cleared)总和将是该唯一日期的总check_amount(cmcl_forecast_cleared)

我希望这是可以理解的.我不确定我是否需要任何分组

Answer 1

select
  a.acct_no, m.cmcl_forecast_cleared, b.name,
  count(*) as TotalChecks,
  Sum(m.check_amount) as TotalAmount
from ap_master m   
join accounts a on a.acct_id=m.account_tag  
join banks b on b.bank_id=a.bank_id  
where m.cmcl_bank_cleared is null 
group by a.acct_no, m.cmcl_forecast_cleared, b.name
order by a.acct_no, m.cmcl_forecast_cleared, b.name

您可以根据需要分组尽可能多的列.