想将这个地方命名为类型，但是不知道怎么改，代码如下

select

'本月',a.值

from 

(

select by_income as  值 from app_db.zhy_fyyw_xl_m_hy

where calmonth = translate(substr(current_date() , 1 ,7 ),'-','')

) as a

union

select

'上月',a.值

from 

(

select sy_income as  值 from app_db.zhy_fyyw_xl_m_hy

where calmonth = translate(substr(current_date() , 1 ,7 ),'-','')

) as a

union

select

'同期',a.值

from 

(

select tq_income as  值 from app_db.zhy_fyyw_xl_m_hy

where calmonth = translate(substr(current_date() , 1 ,7 ),'-','')

) as a

union

select

'同比',a.值

from 

(

select tb_income_rate as  值 from app_db.zhy_fyyw_xl_m_hy

where calmonth = translate(substr(current_date() , 1 ,7 ),'-','')

) as a

union

select

'环比',a.值

from 

(

select hb_income_rate as  值 from app_db.zhy_fyyw_xl_m_hy

where calmonth = translate(substr(current_date() , 1 ,7 ),'-','')

) as a