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博客园 - 左少白

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sql1
左少白 · 2010-03-17 · via 博客园 - 左少白

a表合同号为 0801000237 的有一条数据,billamount 列数据为24000000

对应的B表有六条记录,查询结果要求,在B表里,只显示一次24000000

select a.contractno,b.billid,

sum(case  when a.billtype='银行承兑汇票' then a.billamount else 0 end),

sum(case  when a.billtype='银行承兑汇票' and b.billid in (select max(billid) from tb_gos_fund_cashfinance where contractno = a.contractno group by contractno  ) then a.billamount else 0 end)

from tb_gos_fund_contract a left join tb_gos_fund_cashfinance b 

on a.contractno=b.contractno and a.financebank=b.financebank

group by a.contractno,b.billid

having a.contractno='0801000237'