`no viable alternative at input 'SELECTCOUNT(*)FROM(SELECTDATE_FORMAT(dr.date,'%Y-%m-%d')ASdate,t.staff_nameASstaffName,t.staff_idASstaffId,t.department ...

Abstract: Automated grading of SQL queries is a challenging task due to the complexity of the language and the variety of acceptable solutions for a given problem. In this paper, we propose a novel ...