CTE error: "Types don't match between the anchor and the recursive part"
Exactly what it says:
'name1' has a different data type to 'name' + CAST((rn+1) as varchar(255))
Try this (untested)
;with cte as(select 1 as rn, CAST('name1' as varchar(259)) as nmunion allselect rn+1,nm = 'name' + CAST((rn+1) as varchar(255))from cte a where rn<10)select * from cteBasically, you have to ensure the length matches too. For the recursive bit, you may have to use CAST('name' AS varchar(4)) if it fails again
You need to cast both nm fields
;with cte as(select 1 as rn, CAST('name1' AS VARCHAR(255)) as nmunion allselect rn+1, nm = CAST('name' + CAST((rn+1) as varchar(255)) AS VARCHAR(255))from cte a where rn<10)select * from cte
For me problem was in different collation.
Only this helped me:
;WITH cte AS ( SELECT 1 AS rn, CAST('name1' AS NVARCHAR(4000)) COLLATE DATABASE_DEFAULT AS nm UNION ALL SELECT rn + 1, nm = CAST('name' + CAST((rn + 1) AS NVARCHAR(255)) AS NVARCHAR(4000)) COLLATE DATABASE_DEFAULT FROM cte a WHERE rn < 10)SELECT * FROM cte;Hope it can help someone else.