feat: flyway migration script

Author: wonyongChoi05

backend/src/main/java/wooteco/prolog/member/domain/Department.java

@@ -2,10 +2,8 @@
 
 import static wooteco.prolog.common.exception.BadRequestCode.CANT_FIND_GROUP_TYPE;
 
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.GenerationType;
-import javax.persistence.Id;
+import javax.persistence.*;
+
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -20,8 +18,10 @@ public class Department {
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
+    @Enumerated(value = EnumType.STRING)
     private Part part;
 
+    @Enumerated(value = EnumType.STRING)
     private Term term;
 
     public Department(Long id, String part, String term) {

backend/src/main/resources/db/migration/prod/V9__alter_table_group_and_member.sql

@@ -0,0 +1,30 @@
+CREATE TABLE IF NOT EXISTS department
+(
+    id   bigint auto_increment primary key,
+    part varchar(50) not null,
+    term varchar(50) not null
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4;
+
+create table if not exists department_member
+(
+    id        bigint auto_increment primary key,
+    member_id bigint not null,
+    department_id  bigint not null,
+    constraint FK_DEPARTMENT_MEMBER_ON_MEMBERㅇ
+        foreign key (member_id) references prolog.member (id),
+    constraint FK_DEPARTMENT_MEMBER_ON_DEPARTMENT
+        foreign key (department_id) references prolog.department (id)
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4;
+
+insert into department(id, part, term) values (1, '백엔드', '3기');
+insert into department(id, part, term) values (2, '프론트엔드', '3기');
+insert into department(id, part, term) values (3, '백엔드', '4기');
+insert into department(id, part, term) values (4, '프론트엔드', '4기');
+insert into department(id, part, term) values (5, '백엔드', '5기');
+insert into department(id, part, term) values (6, '프론트엔드', '5기');
+insert into department(id, part, term) values (7, '안드로이드', '5기');
+
+insert into department_member (id, member_id, department_id)
+    (select id, member_id, group_id from group_member);