[week02] unyeon 2주차 미션

unyeon/week2/chapter2_query.md

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+# 2주차 미션 SQL 쿼리
+
+## 1. 내가 진행중 / 진행 완료한 미션 모아서 보는 쿼리 (페이징 포함)
+
+```sql
+SELECT
+    mm.mission_id,
+    s.name          AS store_name,
+    m.title         AS mission_title,
+    m.spec          AS mission_spec,
+    m.reward,
+    m.dead_line,
+    mm.status,
+    mm.created_at
+FROM member_mission mm
+JOIN mission m ON mm.mission_id = m.id
+JOIN store   s ON m.store_id    = s.id
+WHERE mm.member_id = :memberId
+  AND mm.status IN ('CHALLENGING', 'COMPLETE')
+ORDER BY
+    CASE mm.status
+        WHEN 'CHALLENGING' THEN 0
+        ELSE 1
+    END,
+    mm.created_at DESC
+LIMIT :limit OFFSET :offset;
+```
+
+## 2. 리뷰 작성하는 쿼리 (사진 배제)
+
+```sql
+INSERT INTO review (member_id, store_id, content, score, created_at, updated_at)
+VALUES (:memberId, :storeId, :content, :score, NOW(), NOW());
+```
+
+## 3. 홈 화면 쿼리 - 선택된 지역에서 도전 가능한 미션 목록 (페이징 포함)
+
+```sql
+SELECT
+    m.id                        AS mission_id,
+    s.name                      AS store_name,
+    s.address                   AS store_address,
+    ROUND(AVG(r.score), 1)      AS store_rating,
+    m.title                     AS mission_title,
+    m.spec                      AS mission_spec,
+    m.reward,
+    m.dead_line
+FROM mission m
+JOIN store s ON m.store_id = s.id
+LEFT JOIN review r ON r.store_id = s.id
+WHERE s.region_id = :regionId
+  AND (m.dead_line IS NULL OR m.dead_line >= CURDATE())
+  AND m.id NOT IN (
+      SELECT mission_id
+      FROM member_mission
+      WHERE member_id = :memberId
+  )
+GROUP BY
+    m.id, s.name, s.address, m.title, m.spec, m.reward, m.dead_line, m.created_at
+ORDER BY m.created_at DESC
+LIMIT :limit OFFSET :offset;
+```
+
+## 4. 마이 페이지 화면 쿼리
+
+```sql
+SELECT
+    mem.id,
+    mem.name,
+    mem.nickname,
+    mem.profile_image_url,
+    mem.phone_num,
+    mem.point,
+    COUNT(CASE WHEN mm.status = 'COMPLETE'    THEN 1 END) AS completed_mission_count,
+    COUNT(CASE WHEN mm.status = 'CHALLENGING' THEN 1 END) AS ongoing_mission_count,
+    (SELECT COUNT(*) FROM review rv WHERE rv.member_id = mem.id) AS review_count
+FROM member mem
+LEFT JOIN member_mission mm ON mem.id = mm.member_id
+WHERE mem.id = :memberId
+GROUP BY mem.id;
+```