decode(ZWGDL,0,'',ZWGDL) as ZWGDL,
case when ZBYCDL1 = 0 then null else ZBYCDL1 end ZBYCDL1,
decode(ZWGDL,0,'',ZWGDL) as ZWGDL,
case when ZBYCDL1 = 0 then null else ZBYCDL1 end ZBYCDL1,
转载于:https://my.oschina.net/u/2446847/blog/1536348