CTE - recursive query doing too much - sql

Question

I have the current table of data...
| LoanRollupID | NewLoanID | PreviousLoanID |
|--------------|-----------|----------------|
| 11 | 76 | 44 |
| 12 | 80 | 75 |
| 13 | 83 | 82 |
| 14 | 84 | 83 |
| 15 | 86 | 85 |
| 16 | 87 | 54 |
| 17 | 88 | 87 |
| 18 | 90 | 48 |
| 19 | 91 | 34 |
| 20 | 93 | 41 |
| 21 | 94 | 76 |
| 22 | 95 | 90 |
| 23 | 96 | 94 |
| 24 | 100 | 92 |
| 25 | 101 | 99 |
| 26 | 102 | 98 |
| 27 | 103 | 101 |
| 28 | 104 | 81 |
| 29 | 105 | 80 |
| 30 | 107 | 52 |
| 31 | 110 | 108 |
| 1029 | 1105 | 103 |
| 1030 | 1106 | 104 |
| 1031 | 1108 | 1106 |
| 1032 | 1109 | 73 |
I'm trying to jump in at NewLoanID 1108 and see how it has evolved from previous Loans. e.g 1108 came from 1106, which came from 104, which came from 81, etc.
When I run this query:
WITH OldLoans (PreviousLoanID, NewLoanID, start)
AS
(
---- Anchor member definition
SELECT l.NewLoanID, l.PreviousLoanID, 0 as start
FROM dscs_public.LoanRollup l
Where NewLoanID = 1108
UNION ALL
-- Recursive member definition
SELECT l.NewLoanID, l.PreviousLoanID, start + 1
FROM dscs_public.LoanRollup l
INNER JOIN OldLoans AS o
ON o.NewLoanID = l.PreviousLoanID
)
---- Statement that executes the CTE
SELECT PreviousLoanID, NewLoanID, start
FROM OldLoans
It fails with this error:
The statement terminated. The maximum recursion 100 has been exhausted
before statement completion.
Can anyone spot my mistake please?
Thanks.

Answer 1

The aliases in the CTE definition are in the wrong order:
-- Instead of (PreviousLoanID, NewLoanID, start)
WITH OldLoans (NewLoanID, PreviousLoanID, start)
AS
(
---- Anchor member definition
SELECT l.NewLoanID, l.PreviousLoanID, 0 as start
FROM mytable l --LoanRollup l
Where NewLoanID = 1108
UNION ALL
-- Recursive member definition
SELECT l.NewLoanID, l.PreviousLoanID, start + 1
FROM mytable l --dscs_public.LoanRollup l
INNER JOIN OldLoans AS o
-- Instead of o.NewLoanID = l.PreviousLoanID
ON l.NewLoanID = o.PreviousLoanID
)
---- Statement that executes the CTE
SELECT PreviousLoanID, NewLoanID, start
FROM OldLoans
The same thing holds for the ON clause in the recursive member definition.