John,
Here is simplification of the 2 tables.
They are matched on one key item.
#input1 - row 5 has only one match.
#input1 - row 6 has no matches.
++++++
CREATE TABLE [dbo].[#Input1](
[RECORD_ID] [numeric](10, 0) not NULL,
[keyItem] varchar(15) not null )
insert into #Input1
values ( '1', '113456')
insert into #Input1
values ( '2','113457')
insert into #Input1
values ( '3','113458')
insert into #Input1
values ( '4','113459')
insert into #Input1
values ( '5','113460')
insert into #Input1
values ( '6','113461')
CREATE TABLE [dbo].[#Input2](
[input2_ID] [numeric](10, 0) not NULL,
[Item] varchar(15) NULL,
[I_desc] varchar(24) null,
[S_desc] varchar(50) null,
[M_desc] varchar(10) null,
[KeyItem] varchar(15) not null )
insert into #Input2
values ('1', '123','desc','blue','rg','113456')
insert into #Input2
values ( '2','123','desc','blue','rg','113457')
insert into #Input2
values ( '3','123','desc','blue','rg','113458')
insert into #Input2
values ( '4','123','desc2','blue','rg','113459')
insert into #Input2
values ('5', '123','desc','blue','rg','113456')
insert into #Input2
values ( '6','123','desc','blue','rg','113456')
insert into #Input2
values ( '7','123','desc','blue','rg','113457')
insert into #Input2
values ( '8','123','desc','blue','rg','113457')
insert into #Input2
values ( '7','123','desc','blue','rg','113458')
insert into #Input2
values ( '8','123','desc','blue','rg',',113458')
insert into #Input2
values ( '9','123','desc','blue2','rg','113459')
insert into #Input2
values ( '10','123','desc','blue3','rg','113459')
insert into #Input2
values ( '11','123','desc','blue3','rg','113459')
insert into #Input2
values ( '12','123','desc','blue3','rg','113460')
Select Record_Id, #input2.keyItem, item, i_desc, S_desc, M_desc, ' ' as status
from #input1 Join #input2
on #input1.KeyItem = #input2.KeyItem
order by record_Id
drop table #input1
drop table #input2