diff --git a/src/backend/src/main/java/com/zioinfo/kintex/admin/AdminDashboardMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/admin/AdminDashboardMapper.java
index f66b816..0ef7174 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/admin/AdminDashboardMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/admin/AdminDashboardMapper.java
@@ -17,24 +17,24 @@ public interface AdminDashboardMapper {
     @Select("""
             SELECT
               (SELECT count(*) FROM event
-                 WHERE start_date <= CURRENT_DATE AND end_date >= CURRENT_DATE) AS ongoingEvents,
+                 WHERE start_date <= CURRENT_DATE AND end_date >= CURRENT_DATE) AS "ongoingEvents",
               (SELECT count(DISTINCT ha.hall_id) FROM hall_assignment ha JOIN event e ON e.id = ha.event_id
-                 WHERE e.start_date <= CURRENT_DATE AND e.end_date >= CURRENT_DATE) AS hallsInUse,
-              (SELECT count(*) FROM app_user WHERE status = 'ACTIVE') AS activeUsers,
+                 WHERE e.start_date <= CURRENT_DATE AND e.end_date >= CURRENT_DATE) AS "hallsInUse",
+              (SELECT count(*) FROM app_user WHERE status = 'ACTIVE') AS "activeUsers",
               (SELECT count(*) FROM company) AS companies,
               (SELECT count(*) FROM event
-                 WHERE start_date > CURRENT_DATE) AS upcomingEvents
+                 WHERE start_date > CURRENT_DATE) AS "upcomingEvents"
             """)
     Map<String, Object> findKpiCounts();
 
     /** 진행 중(라이브) 행사 — 대표 홀·부스 수·홀 수용량. 최대 20건. */
     @Select("""
-            SELECT e.id AS eventId,
+            SELECT e.id AS "eventId",
                    e.name,
                    COALESCE(h.label, '') AS hall,
                    e.status,
                    (SELECT count(*) FROM booth b JOIN layout l ON l.id = b.layout_id
-                      WHERE l.event_id = e.id) AS boothCount,
+                      WHERE l.event_id = e.id) AS "boothCount",
                    COALESCE((SELECT sum(h2.booth_capacity) FROM hall_assignment ha2
                       JOIN hall h2 ON h2.id = ha2.hall_id WHERE ha2.event_id = e.id), 0) AS capacity
             FROM event e
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/analytics/AnalyticsMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/analytics/AnalyticsMapper.java
index ae4edba..64eedfe 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/analytics/AnalyticsMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/analytics/AnalyticsMapper.java
@@ -23,8 +23,8 @@ public interface AnalyticsMapper {
 
     /** 행사 부스 총 판매면적(㎡)·부스 수. */
     @Select("""
-            SELECT COALESCE(sum(ST_Area(b.geom)), 0) AS salesArea,
-                   count(*) AS boothCount
+            SELECT COALESCE(sum(ST_Area(b.geom)), 0) AS "salesArea",
+                   count(*) AS "boothCount"
             FROM booth b JOIN layout l ON l.id = b.layout_id
             WHERE l.event_id = #{eventId}
             """)
@@ -34,7 +34,7 @@ public interface AnalyticsMapper {
     @Select("""
             <script>
             SELECT to_char(b.created_at, 'YYYY-MM') AS period,
-                   COALESCE(sum(ST_Area(b.geom)), 0) AS salesArea,
+                   COALESCE(sum(ST_Area(b.geom)), 0) AS "salesArea",
                    count(*) AS booths
             FROM booth b JOIN layout l ON l.id = b.layout_id
             WHERE l.event_id = #{eventId}
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/catalog/EventCatalogMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/catalog/EventCatalogMapper.java
index dbffe97..34e60f8 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/catalog/EventCatalogMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/catalog/EventCatalogMapper.java
@@ -23,12 +23,12 @@ public interface EventCatalogMapper {
             <script>
             SELECT e.id,
                    e.name,
-                   to_char(e.start_date, 'YYYY-MM-DD') AS startDate,
-                   to_char(e.end_date,   'YYYY-MM-DD') AS endDate,
+                   to_char(e.start_date, 'YYYY-MM-DD') AS "startDate",
+                   to_char(e.end_date,   'YYYY-MM-DD') AS "endDate",
                    e.status,
-                   h.label AS hallLabel,
+                   h.label AS "hallLabel",
                    CAST(NULL AS varchar) AS category,
-                   CAST(NULL AS integer) AS estVisitors
+                   CAST(NULL AS integer) AS "estVisitors"
             FROM event e
             LEFT JOIN LATERAL (
                 SELECT ha.hall_id
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/common/audit/AuditLogMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/common/audit/AuditLogMapper.java
index b64f69e..53425ab 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/common/audit/AuditLogMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/common/audit/AuditLogMapper.java
@@ -22,9 +22,9 @@ public interface AuditLogMapper {
 
     @Select("""
             <script>
-            SELECT id, actor_id AS actorId, actor_name AS actorName, action, target_type AS targetType,
-                   target_id AS targetId, event_id AS eventId, summary, result,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, actor_id AS "actorId", actor_name AS "actorName", action, target_type AS "targetType",
+                   target_id AS "targetId", event_id AS "eventId", summary, result,
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM audit_log
             <where>
               <if test="action != null and action != ''">AND action = #{action}</if>
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/dashboard/DashboardMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/dashboard/DashboardMapper.java
index e586731..446bf2e 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/dashboard/DashboardMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/dashboard/DashboardMapper.java
@@ -16,8 +16,8 @@ public interface DashboardMapper {
 
     /** 행사 헤더(마일스톤 파생용 시작/종료일). 없으면 null. */
     @Select("""
-            SELECT to_char(start_date, 'YYYY-MM-DD') AS startDate,
-                   to_char(end_date,   'YYYY-MM-DD') AS endDate,
+            SELECT to_char(start_date, 'YYYY-MM-DD') AS "startDate",
+                   to_char(end_date,   'YYYY-MM-DD') AS "endDate",
                    name
             FROM event WHERE id = #{eventId}
             """)
@@ -27,23 +27,23 @@ public interface DashboardMapper {
     @Select("""
             SELECT
               (SELECT count(*) FROM booth b JOIN layout l ON l.id = b.layout_id
-                 WHERE l.event_id = #{eventId}) AS boothCount,
+                 WHERE l.event_id = #{eventId}) AS "boothCount",
               (SELECT COALESCE(sum(h.booth_capacity), 0) FROM hall_assignment ha
-                 JOIN hall h ON h.id = ha.hall_id WHERE ha.event_id = #{eventId}) AS targetBooths,
+                 JOIN hall h ON h.id = ha.hall_id WHERE ha.event_id = #{eventId}) AS "targetBooths",
               (SELECT count(*) FROM booth b JOIN layout l ON l.id = b.layout_id
                  JOIN design_plan dp ON dp.booth_id = b.id
-                 WHERE l.event_id = #{eventId} AND dp.status = 'approved') AS designApproved,
+                 WHERE l.event_id = #{eventId} AND dp.status = 'approved') AS "designApproved",
               (SELECT count(*) FROM design_plan dp JOIN booth b ON b.id = dp.booth_id
-                 JOIN layout l ON l.id = b.layout_id WHERE l.event_id = #{eventId}) AS designTotal,
-              (SELECT count(*) FROM utility_order u WHERE u.event_id = #{eventId}) AS utilityOrders,
-              (SELECT count(*) FROM render_job r WHERE r.event_id = #{eventId} AND r.status = 'DONE') AS renderDone
+                 JOIN layout l ON l.id = b.layout_id WHERE l.event_id = #{eventId}) AS "designTotal",
+              (SELECT count(*) FROM utility_order u WHERE u.event_id = #{eventId}) AS "utilityOrders",
+              (SELECT count(*) FROM render_job r WHERE r.event_id = #{eventId} AND r.status = 'DONE') AS "renderDone"
             """)
     Map<String, Object> findKpiCounts(@Param("eventId") String eventId);
 
     /** 참가업체 부스 현황(최신 설계안 상태 조인). 최대 100건. */
     @Select("""
-            SELECT b.booth_no AS boothNo,
-                   b.assigned_company_name AS companyName,
+            SELECT b.booth_no AS "boothNo",
+                   b.assigned_company_name AS "companyName",
                    COALESCE(dp.status, 'draft') AS status
             FROM booth b
             JOIN layout l ON l.id = b.layout_id
@@ -61,8 +61,8 @@ public interface DashboardMapper {
     @Select("""
             SELECT r.id,
                    r.status,
-                   r.shot_preset AS shotPreset,
-                   r.booth_id AS boothId,
+                   r.shot_preset AS "shotPreset",
+                   r.booth_id AS "boothId",
                    to_char(r.updated_at AT TIME ZONE 'UTC', 'YYYY-MM-DD"T"HH24:MI:SS"Z"') AS at
             FROM render_job r
             WHERE r.event_id = #{eventId}
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/ops/OpsMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/ops/OpsMapper.java
index 9c78cc1..12698c9 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/ops/OpsMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/ops/OpsMapper.java
@@ -16,7 +16,7 @@ public interface OpsMapper {
 
     /** 행사 배정 홀 목록(대표 홀 우선 정렬). */
     @Select("""
-            SELECT h.id AS hallId, h.label
+            SELECT h.id AS "hallId", h.label
             FROM hall_assignment ha
             JOIN hall h ON h.id = ha.hall_id
             WHERE ha.event_id = #{eventId}
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/security/AccountSecurityMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/security/AccountSecurityMapper.java
index 359a0d0..23f2e4e 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/security/AccountSecurityMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/security/AccountSecurityMapper.java
@@ -17,17 +17,17 @@ public interface AccountSecurityMapper {
 
     /** 이메일 → 인증+보안 행(자격검증·2FA 분기용). 없으면 null. */
     @Select("""
-            SELECT id AS userId, display_name AS displayName, password_hash AS passwordHash,
-                   hall_manager AS hallManager, otp_enabled AS otpEnabled, otp_secret AS otpSecret,
-                   role_code AS roleCode, failed_login_count AS failedCount, locked_until AS lockedUntil
+            SELECT id AS "userId", display_name AS "displayName", password_hash AS "passwordHash",
+                   hall_manager AS "hallManager", otp_enabled AS "otpEnabled", otp_secret AS "otpSecret",
+                   role_code AS "roleCode", failed_login_count AS "failedCount", locked_until AS "lockedUntil"
             FROM app_user WHERE email = #{email} AND status = 'ACTIVE'
             """)
     Map<String, Object> findAuthSecurityByEmail(@Param("email") String email);
 
     /** userId → 보안 요약(마이페이지 OTP 상태·발급 라벨). */
     @Select("""
-            SELECT id AS userId, email, display_name AS displayName, hall_manager AS hallManager,
-                   otp_enabled AS otpEnabled, otp_secret AS otpSecret, role_code AS roleCode
+            SELECT id AS "userId", email, display_name AS "displayName", hall_manager AS "hallManager",
+                   otp_enabled AS "otpEnabled", otp_secret AS "otpSecret", role_code AS "roleCode"
             FROM app_user WHERE id = #{userId}
             """)
     Map<String, Object> findSecurityById(@Param("userId") String userId);
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/system/commoncode/CommonCodeMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/system/commoncode/CommonCodeMapper.java
index 9c9709a..adf9909 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/system/commoncode/CommonCodeMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/system/commoncode/CommonCodeMapper.java
@@ -9,12 +9,12 @@ import java.util.Map;
 @Mapper
 public interface CommonCodeMapper {
 
-    @Select("SELECT grp_code AS grpCode, grp_name AS grpName, description, use_yn AS useYn, "
-            + "sort_order AS sortOrder FROM common_code_group ORDER BY sort_order, grp_code")
+    @Select("SELECT grp_code AS \"grpCode\", grp_name AS \"grpName\", description, use_yn AS \"useYn\", "
+            + "sort_order AS \"sortOrder\" FROM common_code_group ORDER BY sort_order, grp_code")
     List<Map<String, Object>> findGroups();
 
-    @Select("SELECT grp_code AS grpCode, code, code_name AS codeName, code_value AS codeValue, "
-            + "sort_order AS sortOrder, use_yn AS useYn, attr1 FROM common_code "
+    @Select("SELECT grp_code AS \"grpCode\", code, code_name AS \"codeName\", code_value AS \"codeValue\", "
+            + "sort_order AS \"sortOrder\", use_yn AS \"useYn\", attr1 FROM common_code "
             + "WHERE grp_code = #{grpCode} AND use_yn = 'Y' ORDER BY sort_order, code")
     List<Map<String, Object>> findCodes(@Param("grpCode") String grpCode);
 
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/system/loginslide/LoginSlideMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/system/loginslide/LoginSlideMapper.java
index 6cd77f2..47898e7 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/system/loginslide/LoginSlideMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/system/loginslide/LoginSlideMapper.java
@@ -9,9 +9,9 @@ import java.util.Map;
 @Mapper
 public interface LoginSlideMapper {
 
-    String COLS = "id, image_url AS imageUrl, title, caption, sort_order AS sortOrder, "
-            + "is_active AS active, to_char(created_at, 'YYYY-MM-DD HH24:MI') AS createdAt, "
-            + "to_char(updated_at, 'YYYY-MM-DD HH24:MI') AS updatedAt";
+    String COLS = "id, image_url AS \"imageUrl\", title, caption, sort_order AS \"sortOrder\", "
+            + "is_active AS active, to_char(created_at, 'YYYY-MM-DD HH24:MI') AS \"createdAt\", "
+            + "to_char(updated_at, 'YYYY-MM-DD HH24:MI') AS \"updatedAt\"";
 
     /** 공개 노출용 — 활성만, 최신 등록순 최대 {limit}건. */
     @Select("SELECT " + COLS + " FROM login_slide WHERE is_active = true "
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/system/menu/MenuMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/system/menu/MenuMapper.java
index 086cd6b..849c52d 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/system/menu/MenuMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/system/menu/MenuMapper.java
@@ -9,8 +9,8 @@ import java.util.Map;
 @Mapper
 public interface MenuMapper {
 
-    @Select("SELECT id, parent_id AS parentId, menu_name AS menuName, menu_path AS menuPath, icon, "
-            + "prg_type AS prgType, required_role AS requiredRole, sort_order AS sortOrder, use_yn AS useYn "
+    @Select("SELECT id, parent_id AS \"parentId\", menu_name AS \"menuName\", menu_path AS \"menuPath\", icon, "
+            + "prg_type AS \"prgType\", required_role AS \"requiredRole\", sort_order AS \"sortOrder\", use_yn AS \"useYn\" "
             + "FROM sys_menu ORDER BY sort_order, id")
     List<Map<String, Object>> findAll();
 
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/system/role/RoleMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/system/role/RoleMapper.java
index 4dd0c51..3880e48 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/system/role/RoleMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/system/role/RoleMapper.java
@@ -9,11 +9,11 @@ import java.util.Map;
 @Mapper
 public interface RoleMapper {
 
-    @Select("SELECT role_code AS roleCode, role_name AS roleName, description, use_yn AS useYn "
+    @Select("SELECT role_code AS \"roleCode\", role_name AS \"roleName\", description, use_yn AS \"useYn\" "
             + "FROM sys_role ORDER BY role_code")
     List<Map<String, Object>> findRoles();
 
-    @Select("SELECT perm_code AS permCode, perm_name AS permName, description "
+    @Select("SELECT perm_code AS \"permCode\", perm_name AS \"permName\", description "
             + "FROM sys_permission ORDER BY perm_code")
     List<Map<String, Object>> findPermissions();
 
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/system/setting/SettingMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/system/setting/SettingMapper.java
index 56a4307..ecc13b4 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/system/setting/SettingMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/system/setting/SettingMapper.java
@@ -9,12 +9,12 @@ import java.util.Map;
 @Mapper
 public interface SettingMapper {
 
-    @Select("SELECT setting_key AS settingKey, setting_value AS settingValue, value_type AS valueType, "
-            + "description, secret_yn AS secretYn FROM sys_setting ORDER BY setting_key")
+    @Select("SELECT setting_key AS \"settingKey\", setting_value AS \"settingValue\", value_type AS \"valueType\", "
+            + "description, secret_yn AS \"secretYn\" FROM sys_setting ORDER BY setting_key")
     List<Map<String, Object>> findAll();
 
-    @Select("SELECT setting_key AS settingKey, setting_value AS settingValue, value_type AS valueType, "
-            + "description, secret_yn AS secretYn FROM sys_setting WHERE setting_key = #{key}")
+    @Select("SELECT setting_key AS \"settingKey\", setting_value AS \"settingValue\", value_type AS \"valueType\", "
+            + "description, secret_yn AS \"secretYn\" FROM sys_setting WHERE setting_key = #{key}")
     Map<String, Object> findByKey(@Param("key") String key);
 
     @Insert("INSERT INTO sys_setting (setting_key, setting_value, value_type, description, secret_yn, updated_by) "
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/system/sysuser/SysUserMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/system/sysuser/SysUserMapper.java
index 699b54e..e6ba2ed 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/system/sysuser/SysUserMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/system/sysuser/SysUserMapper.java
@@ -21,9 +21,9 @@ public interface SysUserMapper {
     /** 사용자 목록(검색·페이징) — 민감 컬럼 제외. */
     @Select("""
             <script>
-            SELECT id AS userId, email, display_name AS displayName, hall_manager AS hallManager,
-                   role_code AS roleCode, dept_id AS deptId, status, otp_enabled AS otpEnabled,
-                   to_char(last_login_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS lastLoginAt
+            SELECT id AS "userId", email, display_name AS "displayName", hall_manager AS "hallManager",
+                   role_code AS "roleCode", dept_id AS "deptId", status, otp_enabled AS "otpEnabled",
+                   to_char(last_login_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "lastLoginAt"
             FROM app_user
             <where>
               <if test="keyword != null and keyword != ''">
@@ -56,8 +56,8 @@ public interface SysUserMapper {
                @Param("roleCode") String roleCode);
 
     @Select("""
-            SELECT id AS userId, email, display_name AS displayName, hall_manager AS hallManager,
-                   role_code AS roleCode, dept_id AS deptId, status, otp_enabled AS otpEnabled
+            SELECT id AS "userId", email, display_name AS "displayName", hall_manager AS "hallManager",
+                   role_code AS "roleCode", dept_id AS "deptId", status, otp_enabled AS "otpEnabled"
             FROM app_user WHERE id = #{userId}
             """)
     Map<String, Object> findById(@Param("userId") String userId);
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/work/meeting/MeetingMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/work/meeting/MeetingMapper.java
index a0521d2..171ef71 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/work/meeting/MeetingMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/work/meeting/MeetingMapper.java
@@ -11,10 +11,10 @@ public interface MeetingMapper {
 
     @Select("""
             <script>
-            SELECT id, event_id AS eventId, title, location,
-                   to_char(meeting_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS meetingAt,
-                   organizer_id AS organizerId, organizer_name AS organizerName, content, minutes,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", title, location,
+                   to_char(meeting_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "meetingAt",
+                   organizer_id AS "organizerId", organizer_name AS "organizerName", content, minutes,
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM meeting
             <where>
               <if test="eventId != null and eventId != ''">AND event_id = #{eventId}</if>
@@ -33,10 +33,10 @@ public interface MeetingMapper {
     long count(Map<String, Object> q);
 
     @Select("""
-            SELECT id, event_id AS eventId, title, location,
-                   to_char(meeting_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS meetingAt,
-                   organizer_id AS organizerId, organizer_name AS organizerName, content, minutes,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", title, location,
+                   to_char(meeting_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "meetingAt",
+                   organizer_id AS "organizerId", organizer_name AS "organizerName", content, minutes,
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM meeting WHERE id = #{id}
             """)
     Map<String, Object> findById(@Param("id") String id);
@@ -63,8 +63,8 @@ public interface MeetingMapper {
     int delete(@Param("id") String id, @Param("organizerId") String organizerId);
 
     @Select("""
-            SELECT id, meeting_id AS meetingId, seq, action_item AS actionItem, assignee_id AS assigneeId,
-                   to_char(due_date,'YYYY-MM-DD') AS dueDate, status
+            SELECT id, meeting_id AS "meetingId", seq, action_item AS "actionItem", assignee_id AS "assigneeId",
+                   to_char(due_date,'YYYY-MM-DD') AS "dueDate", status
             FROM meeting_action WHERE meeting_id=#{meetingId} ORDER BY seq
             """)
     List<Map<String, Object>> findActions(@Param("meetingId") String meetingId);
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/work/message/MessageMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/work/message/MessageMapper.java
index 606a7a0..f71ee04 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/work/message/MessageMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/work/message/MessageMapper.java
@@ -18,10 +18,10 @@ public interface MessageMapper {
     int insertRecipient(Map<String, Object> p);
 
     @Select("""
-            SELECT m.id, m.sender_id AS senderId, m.sender_name AS senderName, m.title, m.content,
-                   r.recv_type AS recvType,
-                   to_char(r.read_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS readAt,
-                   to_char(m.created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT m.id, m.sender_id AS "senderId", m.sender_name AS "senderName", m.title, m.content,
+                   r.recv_type AS "recvType",
+                   to_char(r.read_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "readAt",
+                   to_char(m.created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM message_recipient r JOIN message m ON m.id = r.message_id
             WHERE r.recipient_id = #{userId} AND r.deleted = false
             ORDER BY m.created_at DESC LIMIT #{size} OFFSET #{offset}
@@ -37,8 +37,8 @@ public interface MessageMapper {
     long unreadCount(@Param("userId") String userId);
 
     @Select("""
-            SELECT m.id, m.sender_id AS senderId, m.sender_name AS senderName, m.title, m.content,
-                   to_char(m.created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT m.id, m.sender_id AS "senderId", m.sender_name AS "senderName", m.title, m.content,
+                   to_char(m.created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM message m WHERE m.sender_id = #{userId}
             ORDER BY m.created_at DESC LIMIT #{size} OFFSET #{offset}
             """)
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/work/notice/NoticeMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/work/notice/NoticeMapper.java
index e48263c..63ee88f 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/work/notice/NoticeMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/work/notice/NoticeMapper.java
@@ -11,10 +11,10 @@ public interface NoticeMapper {
 
     @Select("""
             <script>
-            SELECT id, event_id AS eventId, category, title, content, pinned,
-                   author_id AS authorId, author_name AS authorName, view_count AS viewCount,
-                   to_char(published_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS publishedAt,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", category, title, content, pinned,
+                   author_id AS "authorId", author_name AS "authorName", view_count AS "viewCount",
+                   to_char(published_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "publishedAt",
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM notice
             <where>
               <if test="eventId != null and eventId != ''">AND event_id = #{eventId}</if>
@@ -39,10 +39,10 @@ public interface NoticeMapper {
     long count(Map<String, Object> q);
 
     @Select("""
-            SELECT id, event_id AS eventId, category, title, content, pinned,
-                   author_id AS authorId, author_name AS authorName, view_count AS viewCount,
-                   to_char(published_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS publishedAt,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", category, title, content, pinned,
+                   author_id AS "authorId", author_name AS "authorName", view_count AS "viewCount",
+                   to_char(published_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "publishedAt",
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM notice WHERE id = #{id}
             """)
     Map<String, Object> findById(@Param("id") String id);
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/work/notification/NotificationMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/work/notification/NotificationMapper.java
index 2de428a..ee6d155 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/work/notification/NotificationMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/work/notification/NotificationMapper.java
@@ -11,10 +11,10 @@ public interface NotificationMapper {
 
     @Select("""
             <script>
-            SELECT id, recipient_id AS recipientId, event_id AS eventId, noti_type AS notiType,
+            SELECT id, recipient_id AS "recipientId", event_id AS "eventId", noti_type AS "notiType",
                    title, message, link,
-                   to_char(read_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS readAt,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+                   to_char(read_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "readAt",
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM notification
             WHERE recipient_id = #{userId}
             <if test="unreadOnly">AND read_at IS NULL</if>
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/work/opinion/OpinionMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/work/opinion/OpinionMapper.java
index 4583a84..e7f355b 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/work/opinion/OpinionMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/work/opinion/OpinionMapper.java
@@ -11,9 +11,9 @@ public interface OpinionMapper {
 
     @Select("""
             <script>
-            SELECT id, event_id AS eventId, category, title, content, status,
-                   author_id AS authorId, author_name AS authorName, secret_yn AS secretYn,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", category, title, content, status,
+                   author_id AS "authorId", author_name AS "authorName", secret_yn AS "secretYn",
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM opinion
             <where>
               <if test="eventId != null and eventId != ''">AND event_id = #{eventId}</if>
@@ -36,9 +36,9 @@ public interface OpinionMapper {
     long count(Map<String, Object> q);
 
     @Select("""
-            SELECT id, event_id AS eventId, category, title, content, status,
-                   author_id AS authorId, author_name AS authorName, secret_yn AS secretYn,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", category, title, content, status,
+                   author_id AS "authorId", author_name AS "authorName", secret_yn AS "secretYn",
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM opinion WHERE id = #{id}
             """)
     Map<String, Object> findById(@Param("id") String id);
@@ -57,8 +57,8 @@ public interface OpinionMapper {
     int delete(@Param("id") String id, @Param("authorId") String authorId);
 
     @Select("""
-            SELECT id, opinion_id AS opinionId, author_id AS authorId, author_name AS authorName, content,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, opinion_id AS "opinionId", author_id AS "authorId", author_name AS "authorName", content,
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM opinion_comment WHERE opinion_id = #{opinionId} ORDER BY created_at
             """)
     List<Map<String, Object>> findComments(@Param("opinionId") String opinionId);
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/work/report/ReportMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/work/report/ReportMapper.java
index 772d530..e1c5140 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/work/report/ReportMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/work/report/ReportMapper.java
@@ -11,10 +11,10 @@ public interface ReportMapper {
 
     @Select("""
             <script>
-            SELECT id, event_id AS eventId, report_type AS reportType,
-                   to_char(period_from,'YYYY-MM-DD') AS periodFrom, to_char(period_to,'YYYY-MM-DD') AS periodTo,
-                   title, content, author_id AS authorId, author_name AS authorName,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", report_type AS "reportType",
+                   to_char(period_from,'YYYY-MM-DD') AS "periodFrom", to_char(period_to,'YYYY-MM-DD') AS "periodTo",
+                   title, content, author_id AS "authorId", author_name AS "authorName",
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM report
             <where>
               <if test="eventId != null and eventId != ''">AND event_id = #{eventId}</if>
@@ -39,10 +39,10 @@ public interface ReportMapper {
     long count(Map<String, Object> q);
 
     @Select("""
-            SELECT id, event_id AS eventId, report_type AS reportType,
-                   to_char(period_from,'YYYY-MM-DD') AS periodFrom, to_char(period_to,'YYYY-MM-DD') AS periodTo,
-                   title, content, author_id AS authorId, author_name AS authorName,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", report_type AS "reportType",
+                   to_char(period_from,'YYYY-MM-DD') AS "periodFrom", to_char(period_to,'YYYY-MM-DD') AS "periodTo",
+                   title, content, author_id AS "authorId", author_name AS "authorName",
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM report WHERE id = #{id}
             """)
     Map<String, Object> findById(@Param("id") String id);
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/work/schedule/ScheduleMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/work/schedule/ScheduleMapper.java
index c83f9ea..8037c4a 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/work/schedule/ScheduleMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/work/schedule/ScheduleMapper.java
@@ -11,12 +11,12 @@ public interface ScheduleMapper {
 
     @Select("""
             <script>
-            SELECT id, event_id AS eventId, owner_id AS ownerId, owner_name AS ownerName, title,
-                   schedule_type AS scheduleType, importance,
-                   to_char(start_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS startAt,
-                   to_char(end_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS endAt,
-                   all_day AS allDay, location, content, color,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", owner_id AS "ownerId", owner_name AS "ownerName", title,
+                   schedule_type AS "scheduleType", importance,
+                   to_char(start_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "startAt",
+                   to_char(end_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "endAt",
+                   all_day AS "allDay", location, content, color,
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM schedule
             <where>
               <if test="mineOnly">AND owner_id = #{userId}</if>
@@ -30,12 +30,12 @@ public interface ScheduleMapper {
     List<Map<String, Object>> search(Map<String, Object> q);
 
     @Select("""
-            SELECT id, event_id AS eventId, owner_id AS ownerId, owner_name AS ownerName, title,
-                   schedule_type AS scheduleType, importance,
-                   to_char(start_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS startAt,
-                   to_char(end_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS endAt,
-                   all_day AS allDay, location, content, color,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt
+            SELECT id, event_id AS "eventId", owner_id AS "ownerId", owner_name AS "ownerName", title,
+                   schedule_type AS "scheduleType", importance,
+                   to_char(start_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "startAt",
+                   to_char(end_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "endAt",
+                   all_day AS "allDay", location, content, color,
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt"
             FROM schedule WHERE id = #{id}
             """)
     Map<String, Object> findById(@Param("id") String id);
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/work/search/SearchMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/work/search/SearchMapper.java
index f029d38..9f8dd60 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/work/search/SearchMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/work/search/SearchMapper.java
@@ -18,7 +18,7 @@ public interface SearchMapper {
             <script>
             SELECT * FROM (
               SELECT 'WORKLOG' AS type, id, title,
-                     to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt, created_at AS ord
+                     to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt", created_at AS ord
               FROM worklog
               WHERE title ILIKE '%'||#{q}||'%' <if test="seeAll == false">AND writer_id = #{userId}</if>
               UNION ALL
diff --git a/src/backend/src/main/java/com/zioinfo/kintex/work/worklog/WorklogMapper.java b/src/backend/src/main/java/com/zioinfo/kintex/work/worklog/WorklogMapper.java
index 1898f08..f228ec8 100644
--- a/src/backend/src/main/java/com/zioinfo/kintex/work/worklog/WorklogMapper.java
+++ b/src/backend/src/main/java/com/zioinfo/kintex/work/worklog/WorklogMapper.java
@@ -11,11 +11,11 @@ public interface WorklogMapper {
 
     @Select("""
             <script>
-            SELECT id, event_id AS eventId, writer_id AS writerId, writer_name AS writerName,
-                   to_char(work_date,'YYYY-MM-DD') AS workDate, title, work_type AS workType,
+            SELECT id, event_id AS "eventId", writer_id AS "writerId", writer_name AS "writerName",
+                   to_char(work_date,'YYYY-MM-DD') AS "workDate", title, work_type AS "workType",
                    progress, status, content, hours,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt,
-                   to_char(updated_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS updatedAt
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt",
+                   to_char(updated_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "updatedAt"
             FROM worklog
             <where>
               <if test="mineOnly">AND writer_id = #{userId}</if>
@@ -45,11 +45,11 @@ public interface WorklogMapper {
     long count(Map<String, Object> q);
 
     @Select("""
-            SELECT id, event_id AS eventId, writer_id AS writerId, writer_name AS writerName,
-                   to_char(work_date,'YYYY-MM-DD') AS workDate, title, work_type AS workType,
+            SELECT id, event_id AS "eventId", writer_id AS "writerId", writer_name AS "writerName",
+                   to_char(work_date,'YYYY-MM-DD') AS "workDate", title, work_type AS "workType",
                    progress, status, content, hours,
-                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS createdAt,
-                   to_char(updated_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS updatedAt
+                   to_char(created_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "createdAt",
+                   to_char(updated_at AT TIME ZONE 'UTC','YYYY-MM-DD"T"HH24:MI:SS"Z"') AS "updatedAt"
             FROM worklog WHERE id = #{id}
             """)
     Map<String, Object> findById(@Param("id") String id);