Get a row from one table and check the corresponding row in the other table if exists the add this row to the next of the first table row - sql-server-2012

Question

I have a table say A which has some rows and 'Id' column as a primary key. And other table B and it has the 'TabAId' and references the table A id column.
Want to get a report like shown in the attached image.
Explanation
I 'sql server' database
select One row from the Table A and check the Id in the Table B, If exists then add table B row as next row(If multiple rows are there then also add those number of rows as next rows) else go further.
Tried with case statement which appends to the row, not adds as next row.
With join also happens same only.
It may be easy through programming language like php or scripting like jquery and ajax but I want it through sql server only. It helps me for the further requirements.
So please someone help me.
Edited:
create table tabA(id int not null primary key,
name varchar(20) null,age int null)
insert into tabA values(1,'Sudeep',35),
(2,'Darshan',34)
create table tabB(A_id int not null,nickname varchar(20) null )
insert into tabB values(1,'Kiccha'),
(1,'Nalla'),
(2,'Boss')
output should be like below
Id | name | age |
------------------------
1 | Sudeep | 35 |
------------------------
| *Kichha | |
------------------------
| *Nalla | |
------------------------
2 | Darshan | 34 |
------------------------
| *Boss | |
------------------------

Answer 1

based on the requirement i have done the following.
;
WITH cte
AS (
SELECT *
,DENSE_RANK() OVER (
ORDER BY id
) dn
,ROW_NUMBER() OVER (
PARTITION BY id ORDER BY age DESC
) rn
FROM (
SELECT *
FROM tabA a
UNION ALL
SELECT *
,NULL
FROM tabB b where exists (select 1 from taba a where a.id=b.A_id)
) a
)
SELECT iif(rn = 1, cast(id AS VARCHAR(50)), '') ID
,CONCAT (
iif(rn = 1, '', '*')
,name
) NAME
,iif(rn = 1, cast(age AS VARCHAR(50)), '') AGE
FROM cte
please let me know if anything needs to be added
Edit: as requested display the results based on the offset
if OBJECT_ID('tempdb..#cte_results') is not null
drop table #cte_results
/*
in order to achieve the second goal we need to store in results in a table then use that table to display
results
*/
;
WITH cte
AS (
SELECT *
,DENSE_RANK() OVER (
ORDER BY id
) dn
,ROW_NUMBER() OVER (
PARTITION BY id ORDER BY age DESC
) rn
,ROW_NUMBER() over( order by id asc,age desc) off_set
FROM (
SELECT *
FROM tabA a
UNION ALL
SELECT *
,NULL
FROM tabB b where exists (select 1 from taba a where a.id=b.A_id)
) a
)
SELECT iif(rn = 1, cast(id AS VARCHAR(50)), '') ID
,CONCAT (
iif(rn = 1, '', '*')
,name
) NAME
,iif(rn = 1, cast(age AS VARCHAR(50)), '') AGE,off_set,rn,max(rn) over(partition by id) max_rn,id idrrr
into #cte_results
FROM cte
/*
the following query is used to display the results in the screen dynamically
*/
declare #pre_offset int=0, #post_offset int =2
set #post_offset=( select top 1 max(max_rn)-max(rn)
from #cte_results
where off_Set
between #pre_offset and #post_offset
group by idrrr
order by idrrr desc
)+#post_offset
select id,name,age from #cte_results
where off_Set
between #pre_offset and #post_offset
Results were as follows