select vcityarea 所属区 from zbdl_company
select vcityarea 所属区 from zbdl_company where vcityarea like '%'
查询出空字段与非空字段
select vcityarea 所属区 from zbdl_company where nvl (vcityarea,'null') like '%'
select vcityarea 所属区 from zbdl_company
select vcityarea 所属区 from zbdl_company where vcityarea like '%'
查询出空字段与非空字段
select vcityarea 所属区 from zbdl_company where nvl (vcityarea,'null') like '%'