How do you align merged data in SQl - sql

Question

I have three tables I want to combine into the Final Table in MSSQl2008. My problem lies in merging the data in the Final Table format. Another issue is the number of columns I have in each table close to 100 each so I need an efficient code that creates the final table
I need an SQl script that will generate the Final table
<h1> Table 2008</h1>
<table border = 1>
<tr>
<td> ID </Td>
<td> Sample_year </Td>
<td> Total_at_t-5 </Td>
<td> Total_at_t-4 </Td>
</tr>
<tr>
<td> MMM </Td>
<td> 2008 </Td>
<td> 5.25 </Td>
<td> 65.25</Td>
</tr>
</table>
<p> </p>
<h1> Table 2011</h1>
<table header = "2011" border = 1>
<tr>
<td> ID </Td>
<td> Sample_year </Td>
<td> Total_at_t-6 </Td>
<td> Total_at_t-5 </Td>
</tr>
<tr>
<td> MMM </Td>
<td> 2011 </Td>
<td> 7.25 </Td>
<td> 98.25</Td>
</tr>
</table>
<p> </p>
<h1> Table 2013</h1>
<table header = "2013" border = 1>
<tr>
<td> ID </Td>
<td> Sample_year </Td>
<td> Total_at_t-7 </Td>
<td> Total_at_t-6 </Td>
</tr>
<tr>
<td> MMM </Td>
<td> 2013 </Td>
<td> 3.25 </Td>
<td> 7.25</Td>
</tr>
</table>
<p> </p>
<h1> Table Final</h1>
<table hearder = "Final Table" border = 1>
<tr>
<td> ID </Td>
<td> Sample_year </Td>
<td> Total_at_t-7 </Td>
<td> Total_at_t-6 </Td>
<td> Total_at_t-5 </Td>
<td> Total_at_t-4 </Td>
</tr>
<tr>
<td> MMM </Td>
<td> NULL </Td>
<td> NULL </Td>
<td> NULL </Td>
<td> 5.25 </Td>
<td> 65025 </Td>
</tr>
<tr>
<td> MMM </Td>
<td> 2011 </Td>
<td> NULL </Td>
<td> 7.25</Td>
<td> 98.25 </Td>
<td> NULL </Td>
</tr>
<tr>
<td> MMM </Td>
<td> 2013 </Td>
<td> 3.25 </Td>
<td> 7.25 </Td>
<td> NUll </Td>
<td> NUll</Td>
</tr>
</table>

Answer 1

Just assume those Table exists in SQL database, if that the case, you only need to use Union (http://www.w3schools.com/sql/sql_union.asp) to join them together
declare #T2008 table (id varchar(3), sample_year int, [total_at_t-5] decimal(10, 2), [total_at_t-4] decimal(10, 2))
insert into #T2008 values ('MMM', 2008, 5.25, 65.25)
declare #T2011 table (id varchar(3), sample_year int, [total_at_t-6] decimal(10, 2), [total_at_t-5] decimal(10, 2))
insert into #T2011 values ('MMM', 2011, 7.25, 98.25)
declare #T2013 table (id varchar(3), sample_year int, [total_at_t-7] decimal(10, 2), [total_at_t-6] decimal(10, 2))
insert into #T2013 values ('MMM', 2013, 3.25, 7.25)
select id, sample_year, null as [total_at_t-7], null as [total_at_t-6], [total_at_t-5], [total_at_t-4]
from #T2008
union
select id, sample_year, null, [total_at_t-6], [total_at_t-5], null
from #T2011
union
select id, sample_year, [total_at_t-7], [total_at_t-6], null, null
from #T2013