sql查询字段根据数据内容对应其他描述,比如Y--是,N--不是

case when info.LEASE_WAY='OPERATING-LEASE' then '经租'
when  info.LEASE_WAY='BACK-LEASE' then '回租'
when info.LEASE_WAY='LEASE' then '直租'
else  '一次性买断' end  as LEASE_WAY,

　　还有一种,如果查询条件不同,查出对应不同的数据库字段

case when com.is_limit_licence='Y' and com.is_galc_company='N' THEN com.LICENCE_NAME
ELSE ag.AGENT_FULL_NAME  END  AS NAME ,