selectmysql存储过程
下面是我穿件存储过程的代码。求大神帮忙看看。真心很急,明天就要用。
create procedure searchStudentGrade(in id char) begin if id is null select student.StudentID,student.StudentName,student.ClassNumber,grade.ExamID,course.CourseName,grade.Grade,course.CourseID from student,grade,course where student.StudentID=grade.StudentID and grade.CourseID=course.CourseID; else select student.StudentID,student.StudentName,student.ClassNumber,grade.ExamID,course.CourseName,grade.Grade,course.CourseID from student,grade,course where student.StudentID=grade.StudentID and grade.CourseID=course.CourseID and grade.StudentID=id; end if;end;
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