query: SELECT max(gradepoint) ,  min(gradepoint) FROM GRADECONVERSION
question: Are Finding that max and min grade point for all letter grade.
query_toks: SELECT max ( gradepoint ) , min ( gradepoint ) FROM GRADECONVERSION
query_toks_no_value: select max ( gradepoint ) , min ( gradepoint ) from gradeconversion
question_toks: Are Finding that max and min grade point for all letter grade.