SQL Nested Multiple Select Statement - sql

Question

Im trying to create a nested SQL statement with multiple Nested Select Statements, to be used on a record set import in excel vba.
What i want to do is create something like:
SELECT
N.LimitN,
Sum(N.amountN),
Sum(N1.amountN1)
FROM (
SELECT year as yearN, Sum(amount) as amountN, limit as limitN
FROM table1
WHERE year = 2013
GROUP BY year, limit) as N
JOIN (
SELECT year as yearN1, Sum(amount) as amountN1, limit as limitN1
FROM table1
WHERE year = 2014
GROUP BY year, limit) as N1
ON N.LimitN = N1.LimitN1
GROUP BY N.LimitN
ORDER BY N.LimitN;
So that if my Raw data is like this:
Year Amount Limit
2013 100 20
2013 90 30
2013 120 40
2013 5 20
2013 100 30
2013 105 40
2013 150 50
2014 115 20
2014 50 30
2014 95 40
2014 110 50
2014 30 20
My Resulting Table/record set will be like this:
Limit AmountN (i.e. 2013) Amount N1 (i.e. 2014)
20 105 145
30 190 50
40 225 95
50 150 110
Thanks in Advance
Peter

Answer 1

It feels like you're overcomplicating the query a little, what you want is just a year wise sum of amount, grouped by limit. This can be done using a CASE;
SELECT
limit,
SUM(CASE WHEN year=2013 THEN amount ELSE 0 END) amountN,
SUM(CASE WHEN year=2014 THEN amount ELSE 0 END) amountN1
FROM myTable
GROUP BY limit
ORDER BY limit;
An SQLfiddle to test with.
(if we're talking Access here, you will need to use IIF instead of CASE)