Here it is

create table #Something

(

Line_no int,

code varchar(5),

AccountNo char(5)

)

insert #Something

select 12311, 'P1c', 'Ac115' union all

select 12311, 'L1', 'Ac115' union all

select 123, 'C1', 'Ac115' union all

select 1222, 'C1', 'Ac115' union all

select 1243, 'C1', 'Ac115' union all

select 433, 'P1a', 'Ac111' union all

select 433, 'L1', 'Ac111' union all

select 4331, 'C1', 'Ac111' union all

select 543, 'C1', 'Ac222' union all

select 544, 'C1', 'Ac222' union all

select 4322, 'P1b', 'Ac222' union all

select 4322, 'L1', 'Ac222' union all

select 8766 'P1d' , 'Ab111' union all

select 8766 'L1' , 'Ab111' union all

select 8767 'C1', 'Ab111' union all

select 8789 'P1d', 'Ab119' union all

select 8766 'L1', 'Ab119' union all

select 876654 'C1', 'Ab119' union all

select 876655 'C1', 'Ab119' union all

select 876698 'P1a', 'Ab117' union all

select 876698 'L1', 'Ab117' union all

select 987 'C1', 'Ab117' union all

select 555444 'P1d' 'Xcv' union all

select 555444 'L1' 'Xcv' union all

select 6754 'C1' 'Xcv' union all

select * from #Something

drop table #Something

Desired output is:

[Parent code] [Parent line Count] [Child line Count]

P1c 1 3

P1a 2 2

P1b 1 2

P1d 3 4