Recursive Data Query(e.g Heading- Sub Heading)

we have a table called evaluation_questions, the table has following fields

queId,Question, level, parentId

the queId is primary key(auto number),where as the field "question" will have question, heading or the subheading,
the level describes the hierarchy of the field "Question", 0 means its a heading, 1 means a subheading and 2 means a question.
where as the parentId means describes the immediate parentId, like if it is 1, then the parent will be English heading....


queIdQuestionlevelparentId
1English00
2Reading11
3Writing11
4recognizing words12
5Fluency22

so English is a heading as level is 0 and has no parent as parentId is also 0.
Reading is a subheading as level is 1 and has a prent English as its parentId=1 which is the queId oof English
same is the case with writing
where as recognizing words and fluency both are questions as the level is 2 and their parentId is 2 which means they come under reading.

Output:

Now What i want is to retrieve the all the questions and headings under a specified heading.like if i pass parentID as a parameter to stored
procedure i should get all the headings and questions under a specified parentID.i need to fill the dataset with it.