classDiagram
direction BT
class CLASSROOM {
   datetime(6) created_at
   datetime(6) updated_at
   varchar(255) classroomInfo_description
   int classroomInfo_grade
   varchar(255) classroomInfo_name
   bigint teacher_id
   bigint classroom_id
}
class MEMBER {
   datetime(6) created_at
   datetime(6) updated_at
   varchar(255) member_name
   varchar(255) member_password
   varchar(255) status
   bigint member_id
}
class MEMBER_AUTHORITY {
   bigint member_id
   varchar(255) authorities_role
}
class MISTAKENOTE {
   datetime(6) created_at
   datetime(6) updated_at
   bigint student_id
   bigint workbook_id
   bigint mistakenote_id
}
class MISTAKE_RECORD {
   int count
   bigint mistakenote_id
   int problem_number
}
class STUDENT_LIST {
   bigint classroom_id
   bigint students_id
}
class WORKBOOK {
   datetime(6) created_at
   datetime(6) updated_at
   bigint classroom_teacher_id
   varchar(255) workbook_description
   int workbook_ending_number
   varchar(255) workbook_name
   int workbook_starting_number
   bigint workbook_id
}
class WORKBOOK_LIST {
   bigint classroom_id
   bigint workbooks_id
}
class hibernate_sequence {
   bigint next_val
}

MEMBER_AUTHORITY  -->  MEMBER : member_id
MISTAKE_RECORD  -->  MISTAKENOTE : mistakenote_id
STUDENT_LIST  -->  CLASSROOM : classroom_id
WORKBOOK_LIST  -->  CLASSROOM : classroom_id