Iterate Data Table ontop of another Data table and make one table - sql

Question

I have a question.
Here is the story, I have Student mark sheet (Table A)
Name Course Marks
Student 01 32472 44
Student 02 32472 80
Student 03 32472 67
Student 04 32472 76
Student 05 32472 56
Student 06 32472 98
Student 07 32472 13
Student 08 32472 68
Student 09 32472 84
Student 10 32472 93
And I have sheet (Table B ) for cut off marks for medals.
Medel Course CutOff
Silver 32472 0-69
Gold 32472 70 -84
Platinum 32472 85 -100
Could you please help me to get following sheet (Table) in SQL.
Name Course Medal
Student 01 32472 Silver
Student 02 32472 Gold
Student 03 32472 Silver
Student 04 32472 Gold
Student 05 32472 Silver
Student 06 32472 Platinum
Student 07 32472 Silver
Student 08 32472 Silver
Student 09 32472 Gold
Student 10 32472 Platinum
How Can I join Table A (Student marks sheet) and Table B (Medal cut off marks sheet) then get Final Table ?
Really appreciate your answers/comments.
Thank you
Gayan

Answer 1

After your edit:
;WITH CteMedals AS(
SELECT *,
rStart = LEFT(CutOff, CHARINDEX('-', CutOff) - 1),
rEnd = SUBSTRING(CutOff, CHARINDEX('-', CutOff) + 1, LEN(CutOff) - CHARINDEX('-', CutOff))
FROM TableB
)
SELECT
a.Name, a.Course, ISNULL(b.Medal, 'Silver') AS Medal
FROM TableA a
OUTER APPLY(
SELECT TOP 1 Medal
FROM CteMedals
WHERE
a.Marks BETWEEN rStart AND rEnd
ORDER BY rEnd DESC
)b
You can use OUTER APPLY:
SELECT
a.Name, a.Course, ISNULL(b.Medal, 'Silver') AS Medal
FROM TableA a
OUTER APPLY(
SELECT TOP 1 Medal
FROM TableB
WHERE
a.Marks >= CutOff
ORDER BY CutOff DESC
)b