摘要:
SELECT o.ORGNAME 'orgname',SUM(CASE WHEN z.ZRSLX='01' and z.fqdwid=O.ORGCODE THEN 1 ELSE 0 END) 'dwddwtotal', SUM(CASE WHEN q.qdzt='1' AND z.ZRSLX='01 阅读全文
摘要:
case函数的妙用select person,ticket_name,sum(case when ticket_name is not null then 1 end) as 总票数 ,sum(case when ticket_price is not null then ticket_price 阅读全文