If u dont want levels, I think u no need of any query.. what ever u want its already in table.
Anyway, coming to changes part, Not only I added levels, I made 3 more changes. In CTE, in recursive part i changed the columns to fetch and inner join columns also... and also in fixed part i added a where condition.
My suggestion is try to run my query.. if its giving error about that max recursion limit 32,767 or you are sure that levels will be beyeond 32,767 ,
and also what you are trying as output. since, u have already that data in the table. r u trying for ParentName and Level??
try this solution.. it might be slow.. but it won't get that max.level limitation.
declare @temp table (CategoryID int,ParentCategoryID int)insertinto @temp select CategoryId,ParentCategoryId from Category where ParentCategoryId = 0while(@@ROWCOUNT> 0)begininsertinto @temp select t1.* from @temp t innerjoin (select c.* from Category c leftouterjoin @temp t on c.CategoryId = t.CategoryID where t.CategoryID isnull )t1 on t.CategoryID = t1.ParentCategoryID endselect * from @temp