TSQL - If..Else statement inside Table-Valued Functions - cant go through

Question

Before posting I have read few articles about developing USD functions, but have not encountered solutions for my problem... which is as follows:

I have a very simple da

Answer 1

We can use Table valued function in following way with IF conditions on it.

CREATE function [dbo].[AA] 
(
@abc varchar(10)
)
Returns  @mytable table
(
supname nvarchar(10), [add] nvarchar(10)
)
AS
begin
-- lOAD WHATEVER THINGS YOU REQUIRED INTO THIS DYNAMIC TABLE
if (@abc ='hh')
    insert into @mytable (supname, [add]) values ('hh','gg'+ @abc)
else
    insert into @mytable (supname, [add]) values ('else','gg'+ @abc)
return
end

---

--select * from [dbo].[AA]('SDAASF')