方法一 :适用于多个字段中没有空值
select concat(leix01,leix02,leix03) from
方法二:(1)适用于多个字段中有空值
(1)select concat_ws(' ',copn_msg,prom_msg) as cpmsg from
(2)select concat(nvl(leix01,''),nvl(leix02,''),nvl(leix03,'')) from dim_ivr_dictionary where ivr_table like 'zj%' and bm='40102'