diff --git a/PHASE4_REMAINING_PRISMA_CALLS.md b/PHASE4_REMAINING_PRISMA_CALLS.md
index ea621f5d..89742648 100644
--- a/PHASE4_REMAINING_PRISMA_CALLS.md
+++ b/PHASE4_REMAINING_PRISMA_CALLS.md
@@ -2,14 +2,14 @@
 
 ## 📊 현재 상황
 
-| 항목            | 내용                                    |
-| --------------- | --------------------------------------- |
-| 총 Prisma 호출  | 29개                                    |
-| 대상 파일       | 7개                                     |
-| **현재 진행률** | **17/29 (58.6%)** 🔄 **진행 중**        |
-| 복잡도          | 중간                                    |
-| 우선순위        | 🔴 높음 (Phase 4)                       |
-| **상태**        | ⏳ **진행 중**                          |
+| 항목            | 내용                             |
+| --------------- | -------------------------------- |
+| 총 Prisma 호출  | 29개                             |
+| 대상 파일       | 7개                              |
+| **현재 진행률** | **17/29 (58.6%)** 🔄 **진행 중** |
+| 복잡도          | 중간                             |
+| 우선순위        | 🔴 높음 (Phase 4)                |
+| **상태**        | ⏳ **진행 중**                   |
 
 ---
 
@@ -18,6 +18,7 @@
 ### ✅ 완료된 파일 (2개)
 
 1. **adminController.ts** - ✅ **28개 완료**
+
    - 사용자 관리: getUserList, getUserInfo, updateUserStatus, deleteUser
    - 프로필 관리: getMyProfile, updateMyProfile, resetPassword
    - 사용자 생성/수정: createOrUpdateUser (UPSERT)
@@ -41,27 +42,33 @@
 #### Prisma 호출 목록:
 
 1. **라인 33**: `getWebTypeStandards()` - findMany
+
    ```typescript
    const webTypes = await prisma.web_type_standards.findMany({
-     where, orderBy, select
+     where,
+     orderBy,
+     select,
    });
    ```
 
 2. **라인 58**: `getWebTypeStandard()` - findUnique
+
    ```typescript
    const webTypeData = await prisma.web_type_standards.findUnique({
-     where: { id }
+     where: { id },
    });
    ```
 
 3. **라인 112**: `createWebTypeStandard()` - findUnique (중복 체크)
+
    ```typescript
    const existingWebType = await prisma.web_type_standards.findUnique({
-     where: { web_type: webType }
+     where: { web_type: webType },
    });
    ```
 
 4. **라인 123**: `createWebTypeStandard()` - create
+
    ```typescript
    const newWebType = await prisma.web_type_standards.create({
      data: { ... }
@@ -69,13 +76,15 @@
    ```
 
 5. **라인 178**: `updateWebTypeStandard()` - findUnique (존재 확인)
+
    ```typescript
    const existingWebType = await prisma.web_type_standards.findUnique({
-     where: { id }
+     where: { id },
    });
    ```
 
 6. **라인 189**: `updateWebTypeStandard()` - update
+
    ```typescript
    const updatedWebType = await prisma.web_type_standards.update({
      where: { id }, data: { ... }
@@ -83,20 +92,23 @@
    ```
 
 7. **라인 230**: `deleteWebTypeStandard()` - findUnique (존재 확인)
+
    ```typescript
    const existingWebType = await prisma.web_type_standards.findUnique({
-     where: { id }
+     where: { id },
    });
    ```
 
 8. **라인 241**: `deleteWebTypeStandard()` - delete
+
    ```typescript
    await prisma.web_type_standards.delete({
-     where: { id }
+     where: { id },
    });
    ```
 
 9. **라인 275**: `updateSortOrder()` - $transaction
+
    ```typescript
    await prisma.$transaction(
      updates.map((item) =>
@@ -110,11 +122,14 @@
 11. **라인 305**: `getCategories()` - groupBy
     ```typescript
     const categories = await prisma.web_type_standards.groupBy({
-      by: ['category'], where, _count: true
+      by: ["category"],
+      where,
+      _count: true,
     });
     ```
 
 **전환 전략**:
+
 - findMany → `query<WebTypeStandard>` with dynamic WHERE
 - findUnique → `queryOne<WebTypeStandard>`
 - create → `queryOne` with INSERT RETURNING
@@ -134,11 +149,12 @@
 1. **라인 726**: `downloadFile()` - findUnique
    ```typescript
    const fileRecord = await prisma.attach_file_info.findUnique({
-     where: { objid: BigInt(objid) }
+     where: { objid: BigInt(objid) },
    });
    ```
 
 **전환 전략**:
+
 - findUnique → `queryOne<AttachFileInfo>`
 
 ---
@@ -150,16 +166,19 @@
 #### Prisma 호출 목록:
 
 1. **라인 1005**: `executeSelect()` - $queryRawUnsafe
+
    ```typescript
    return await prisma.$queryRawUnsafe(query, ...queryParams);
    ```
 
 2. **라인 1022**: `executeInsert()` - $queryRawUnsafe
+
    ```typescript
    const insertResult = await prisma.$queryRawUnsafe(...);
    ```
 
 3. **라인 1055**: `executeUpdate()` - $queryRawUnsafe
+
    ```typescript
    return await prisma.$queryRawUnsafe(updateQuery, ...updateParams);
    ```
@@ -170,6 +189,7 @@
    ```
 
 **전환 전략**:
+
 - $queryRawUnsafe → `query<any>` (이미 Raw SQL 사용 중)
 
 ---
@@ -186,6 +206,7 @@
 4. **라인 31, 35, 40**: `await prisma.$disconnect()`
 
 **전환 전략**:
+
 - 이 파일은 데이터베이스 설정 파일이므로 완전히 제거
 - 기존 `db.ts`의 connection pool로 대체
 - 모든 import 경로를 `database` → `database/db`로 변경
@@ -199,6 +220,7 @@
 #### Prisma 호출:
 
 1. **라인 183-184**: 동적 PrismaClient import
+
    ```typescript
    const { PrismaClient } = await import("@prisma/client");
    const prisma = new PrismaClient();
@@ -211,6 +233,7 @@
    ```
 
 **전환 전략**:
+
 - 동적 import 제거
 - `query('SELECT 1')` 사용
 
@@ -223,20 +246,23 @@
 #### Prisma 호출:
 
 1. **라인 32**: findUnique (중복 체크)
+
    ```typescript
    const existingCompany = await prisma.company_mng.findUnique({
-     where: { company_code }
+     where: { company_code },
    });
    ```
 
 2. **라인 61**: update (회사명 업데이트)
    ```typescript
    await prisma.company_mng.update({
-     where: { company_code }, data: { company_name }
+     where: { company_code },
+     data: { company_name },
    });
    ```
 
 **전환 전략**:
+
 - findUnique → `queryOne`
 - update → `query`
 
@@ -253,24 +279,30 @@
 ## 🎯 전환 우선순위
 
 ### Phase 4.1: 컨트롤러 (완료)
+
 - [x] screenFileController.ts (2개)
 - [x] adminController.ts (28개)
 
 ### Phase 4.2: 남은 컨트롤러 (진행 예정)
+
 - [ ] webTypeStandardController.ts (11개) - 🔴 최우선
 - [ ] fileController.ts (1개)
 
 ### Phase 4.3: Routes (진행 예정)
+
 - [ ] ddlRoutes.ts (2개)
 - [ ] companyManagementRoutes.ts (2개)
 
 ### Phase 4.4: Services (진행 예정)
+
 - [ ] multiConnectionQueryService.ts (4개)
 
 ### Phase 4.5: Config (진행 예정)
+
 - [ ] database.ts (4개) - 전체 파일 제거
 
 ### Phase 4.6: Tests (Phase 5)
+
 - [ ] authService.test.ts (2개) - 별도 처리
 
 ---
@@ -278,6 +310,7 @@
 ## 📋 체크리스트
 
 ### webTypeStandardController.ts
+
 - [ ] Prisma import 제거
 - [ ] query, queryOne import 추가
 - [ ] getWebTypeStandards (findMany → query)
@@ -292,18 +325,21 @@
 - [ ] 동작 테스트
 
 ### fileController.ts
+
 - [ ] Prisma import 제거
 - [ ] queryOne import 추가
 - [ ] downloadFile (findUnique → queryOne)
 - [ ] TypeScript 컴파일 확인
 
 ### routes/ddlRoutes.ts
+
 - [ ] 동적 PrismaClient import 제거
 - [ ] query import 추가
 - [ ] 연결 테스트 로직 변경
 - [ ] TypeScript 컴파일 확인
 
 ### routes/companyManagementRoutes.ts
+
 - [ ] Prisma import 제거
 - [ ] query, queryOne import 추가
 - [ ] findUnique → queryOne
@@ -311,12 +347,14 @@
 - [ ] TypeScript 컴파일 확인
 
 ### services/multiConnectionQueryService.ts
+
 - [ ] Prisma import 제거
 - [ ] query import 추가
 - [ ] $queryRawUnsafe → query (4곳)
 - [ ] TypeScript 컴파일 확인
 
 ### config/database.ts
+
 - [ ] 파일 전체 분석
 - [ ] 의존성 확인
 - [ ] 대체 방안 구현
@@ -328,15 +366,20 @@
 ## 🔧 전환 패턴 요약
 
 ### 1. findMany → query
+
 ```typescript
 // Before
 const items = await prisma.table.findMany({ where, orderBy });
 
 // After
-const items = await query<T>(`SELECT * FROM table WHERE ... ORDER BY ...`, params);
+const items = await query<T>(
+  `SELECT * FROM table WHERE ... ORDER BY ...`,
+  params
+);
 ```
 
 ### 2. findUnique → queryOne
+
 ```typescript
 // Before
 const item = await prisma.table.findUnique({ where: { id } });
@@ -346,6 +389,7 @@ const item = await queryOne<T>(`SELECT * FROM table WHERE id = $1`, [id]);
 ```
 
 ### 3. create → queryOne with RETURNING
+
 ```typescript
 // Before
 const newItem = await prisma.table.create({ data });
@@ -358,6 +402,7 @@ const [newItem] = await query<T>(
 ```
 
 ### 4. update → query with RETURNING
+
 ```typescript
 // Before
 const updated = await prisma.table.update({ where, data });
@@ -370,6 +415,7 @@ const [updated] = await query<T>(
 ```
 
 ### 5. delete → query
+
 ```typescript
 // Before
 await prisma.table.delete({ where: { id } });
@@ -379,6 +425,7 @@ await query(`DELETE FROM table WHERE id = $1`, [id]);
 ```
 
 ### 6. $transaction → transaction
+
 ```typescript
 // Before
 await prisma.$transaction([
@@ -394,11 +441,12 @@ await transaction(async (client) => {
 ```
 
 ### 7. groupBy → query with GROUP BY
+
 ```typescript
 // Before
 const result = await prisma.table.groupBy({
-  by: ['category'],
-  _count: true
+  by: ["category"],
+  _count: true,
 });
 
 // After
@@ -422,30 +470,34 @@ Phase 4.2: 남은 파일        ███████░░░░░░░░░
 
 ### 상세 진행 상황
 
-| 카테고리       | 완료 | 남음 | 진행률 |
-| -------------- | ---- | ---- | ------ |
-| Services       | 415  | 0    | 100%   |
-| Controllers    | 30   | 11   | 73%    |
-| Routes         | 0    | 4    | 0%     |
-| Config         | 0    | 4    | 0%     |
-| **총계**       | 445  | 19   | 95.9%  |
+| 카테고리    | 완료 | 남음 | 진행률 |
+| ----------- | ---- | ---- | ------ |
+| Services    | 415  | 0    | 100%   |
+| Controllers | 30   | 11   | 73%    |
+| Routes      | 0    | 4    | 0%     |
+| Config      | 0    | 4    | 0%     |
+| **총계**    | 445  | 19   | 95.9%  |
 
 ---
 
 ## 🎬 다음 단계
 
 1. **webTypeStandardController.ts 전환** (11개)
+
    - 가장 많은 Prisma 호출을 가진 남은 컨트롤러
    - 웹 타입 표준 관리 핵심 기능
 
 2. **fileController.ts 전환** (1개)
+
    - 단순 findUnique만 있어 빠르게 처리 가능
 
 3. **Routes 전환** (4개)
+
    - ddlRoutes.ts
    - companyManagementRoutes.ts
 
 4. **Service 전환** (4개)
+
    - multiConnectionQueryService.ts
 
 5. **Config 제거** (4개)
@@ -457,14 +509,17 @@ Phase 4.2: 남은 파일        ███████░░░░░░░░░
 ## ⚠️ 주의사항
 
 1. **database.ts 처리**
+
    - 현재 많은 파일이 `import prisma from '../config/database'` 사용
    - 모든 import를 `import { query, queryOne } from '../database/db'`로 변경 필요
    - 단계적으로 진행하여 빌드 오류 방지
 
 2. **BigInt 처리**
+
    - fileController의 `objid: BigInt(objid)` → `objid::bigint` 또는 `CAST(objid AS BIGINT)`
 
 3. **트랜잭션 처리**
+
    - webTypeStandardController의 `updateSortOrder`는 복잡한 트랜잭션
    - `transaction` 함수 사용 필요
 
@@ -489,4 +544,3 @@ Phase 4.2: 남은 파일        ███████░░░░░░░░░
 **작성일**: 2025-10-01  
 **최종 업데이트**: 2025-10-01  
 **상태**: 🔄 진행 중 (58.6% 완료)
-
diff --git a/backend-node/src/controllers/fileController.ts b/backend-node/src/controllers/fileController.ts
index 87ecf2e0..2856098b 100644
--- a/backend-node/src/controllers/fileController.ts
+++ b/backend-node/src/controllers/fileController.ts
@@ -723,11 +723,10 @@ export const downloadFile = async (
   try {
     const { objid } = req.params;
 
-    const fileRecord = await prisma.attach_file_info.findUnique({
-      where: {
-        objid: parseInt(objid),
-      },
-    });
+    const fileRecord = await queryOne<any>(
+      `SELECT * FROM attach_file_info WHERE objid = $1`,
+      [parseInt(objid)]
+    );
 
     if (!fileRecord || fileRecord.status !== "ACTIVE") {
       res.status(404).json({
diff --git a/backend-node/src/controllers/webTypeStandardController.ts b/backend-node/src/controllers/webTypeStandardController.ts
index c35b6dc4..952e688d 100644
--- a/backend-node/src/controllers/webTypeStandardController.ts
+++ b/backend-node/src/controllers/webTypeStandardController.ts
@@ -1,39 +1,51 @@
 import { Request, Response } from "express";
-import { PrismaClient } from "@prisma/client";
+import { query, queryOne, transaction } from "../database/db";
 import { AuthenticatedRequest } from "../types/auth";
 
-const prisma = new PrismaClient();
-
 export class WebTypeStandardController {
   // 웹타입 목록 조회
   static async getWebTypes(req: Request, res: Response) {
     try {
       const { active, category, search } = req.query;
 
-      const where: any = {};
+      // 동적 WHERE 절 생성
+      const whereConditions: string[] = [];
+      const queryParams: any[] = [];
+      let paramIndex = 1;
 
       if (active) {
-        where.is_active = active as string;
+        whereConditions.push(`is_active = $${paramIndex}`);
+        queryParams.push(active);
+        paramIndex++;
       }
 
       if (category) {
-        where.category = category as string;
+        whereConditions.push(`category = $${paramIndex}`);
+        queryParams.push(category);
+        paramIndex++;
       }
 
-      if (search) {
-        where.OR = [
-          { type_name: { contains: search as string, mode: "insensitive" } },
-          {
-            type_name_eng: { contains: search as string, mode: "insensitive" },
-          },
-          { description: { contains: search as string, mode: "insensitive" } },
-        ];
+      if (search && typeof search === "string") {
+        whereConditions.push(`(
+          type_name ILIKE $${paramIndex} OR
+          type_name_eng ILIKE $${paramIndex} OR
+          description ILIKE $${paramIndex}
+        )`);
+        queryParams.push(`%${search}%`);
+        paramIndex++;
       }
 
-      const webTypes = await prisma.web_type_standards.findMany({
-        where,
-        orderBy: [{ sort_order: "asc" }, { web_type: "asc" }],
-      });
+      const whereClause =
+        whereConditions.length > 0
+          ? `WHERE ${whereConditions.join(" AND ")}`
+          : "";
+
+      const webTypes = await query<any>(
+        `SELECT * FROM web_type_standards
+         ${whereClause}
+         ORDER BY sort_order ASC, web_type ASC`,
+        queryParams
+      );
 
       return res.json({
         success: true,
@@ -55,9 +67,10 @@ export class WebTypeStandardController {
     try {
       const { webType } = req.params;
 
-      const webTypeData = await prisma.web_type_standards.findUnique({
-        where: { web_type: webType },
-      });
+      const webTypeData = await queryOne<any>(
+        `SELECT * FROM web_type_standards WHERE web_type = $1`,
+        [webType]
+      );
 
       if (!webTypeData) {
         return res.status(404).json({
@@ -109,9 +122,10 @@ export class WebTypeStandardController {
       }
 
       // 중복 체크
-      const existingWebType = await prisma.web_type_standards.findUnique({
-        where: { web_type },
-      });
+      const existingWebType = await queryOne<any>(
+        `SELECT web_type FROM web_type_standards WHERE web_type = $1`,
+        [web_type]
+      );
 
       if (existingWebType) {
         return res.status(409).json({
@@ -120,8 +134,15 @@ export class WebTypeStandardController {
         });
       }
 
-      const newWebType = await prisma.web_type_standards.create({
-        data: {
+      const [newWebType] = await query<any>(
+        `INSERT INTO web_type_standards (
+          web_type, type_name, type_name_eng, description, category,
+          component_name, config_panel, default_config, validation_rules,
+          default_style, input_properties, sort_order, is_active,
+          created_by, created_date, updated_by, updated_date
+        ) VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, NOW(), $15, NOW())
+        RETURNING *`,
+        [
           web_type,
           type_name,
           type_name_eng,
@@ -135,10 +156,10 @@ export class WebTypeStandardController {
           input_properties,
           sort_order,
           is_active,
-          created_by: req.user?.userId || "system",
-          updated_by: req.user?.userId || "system",
-        },
-      });
+          req.user?.userId || "system",
+          req.user?.userId || "system",
+        ]
+      );
 
       return res.status(201).json({
         success: true,
@@ -174,37 +195,106 @@ export class WebTypeStandardController {
         is_active,
       } = req.body;
 
-      // 존재 여부 확인
-      const existingWebType = await prisma.web_type_standards.findUnique({
-        where: { web_type: webType },
-      });
+      // 동적 UPDATE 쿼리 생성
+      const updateFields: string[] = [];
+      const updateValues: any[] = [];
+      let paramIndex = 1;
 
-      if (!existingWebType) {
+      if (type_name !== undefined) {
+        updateFields.push(`type_name = $${paramIndex}`);
+        updateValues.push(type_name);
+        paramIndex++;
+      }
+      if (type_name_eng !== undefined) {
+        updateFields.push(`type_name_eng = $${paramIndex}`);
+        updateValues.push(type_name_eng);
+        paramIndex++;
+      }
+      if (description !== undefined) {
+        updateFields.push(`description = $${paramIndex}`);
+        updateValues.push(description);
+        paramIndex++;
+      }
+      if (category !== undefined) {
+        updateFields.push(`category = $${paramIndex}`);
+        updateValues.push(category);
+        paramIndex++;
+      }
+      if (component_name !== undefined) {
+        updateFields.push(`component_name = $${paramIndex}`);
+        updateValues.push(component_name);
+        paramIndex++;
+      }
+      if (config_panel !== undefined) {
+        updateFields.push(`config_panel = $${paramIndex}`);
+        updateValues.push(config_panel);
+        paramIndex++;
+      }
+      if (default_config !== undefined) {
+        updateFields.push(`default_config = $${paramIndex}`);
+        updateValues.push(default_config);
+        paramIndex++;
+      }
+      if (validation_rules !== undefined) {
+        updateFields.push(`validation_rules = $${paramIndex}`);
+        updateValues.push(validation_rules);
+        paramIndex++;
+      }
+      if (default_style !== undefined) {
+        updateFields.push(`default_style = $${paramIndex}`);
+        updateValues.push(default_style);
+        paramIndex++;
+      }
+      if (input_properties !== undefined) {
+        updateFields.push(`input_properties = $${paramIndex}`);
+        updateValues.push(input_properties);
+        paramIndex++;
+      }
+      if (sort_order !== undefined) {
+        updateFields.push(`sort_order = $${paramIndex}`);
+        updateValues.push(sort_order);
+        paramIndex++;
+      }
+      if (is_active !== undefined) {
+        updateFields.push(`is_active = $${paramIndex}`);
+        updateValues.push(is_active);
+        paramIndex++;
+      }
+
+      // updated_by, updated_date는 항상 추가
+      updateFields.push(`updated_by = $${paramIndex}`);
+      updateValues.push(req.user?.userId || "system");
+      paramIndex++;
+
+      updateFields.push(`updated_date = NOW()`);
+
+      if (updateFields.length === 2) {
+        // updated_by, updated_date만 있는 경우 = 수정할 내용이 없음
+        return res.status(400).json({
+          success: false,
+          message: "수정할 내용이 없습니다.",
+        });
+      }
+
+      // WHERE 조건용 파라미터 추가
+      updateValues.push(webType);
+
+      const result = await query<any>(
+        `UPDATE web_type_standards
+         SET ${updateFields.join(", ")}
+         WHERE web_type = $${paramIndex}
+         RETURNING *`,
+        updateValues
+      );
+
+      if (result.length === 0) {
         return res.status(404).json({
           success: false,
           message: "해당 웹타입을 찾을 수 없습니다.",
         });
       }
 
-      const updatedWebType = await prisma.web_type_standards.update({
-        where: { web_type: webType },
-        data: {
-          type_name,
-          type_name_eng,
-          description,
-          category,
-          component_name,
-          config_panel,
-          default_config,
-          validation_rules,
-          default_style,
-          input_properties,
-          sort_order,
-          is_active,
-          updated_by: req.user?.userId || "system",
-          updated_date: new Date(),
-        },
-      });
+      const updatedWebType = result[0];
 
       return res.json({
         success: true,
@@ -226,22 +316,18 @@ export class WebTypeStandardController {
     try {
       const { webType } = req.params;
 
-      // 존재 여부 확인
-      const existingWebType = await prisma.web_type_standards.findUnique({
-        where: { web_type: webType },
-      });
+      const result = await query<any>(
+        `DELETE FROM web_type_standards WHERE web_type = $1 RETURNING *`,
+        [webType]
+      );
 
-      if (!existingWebType) {
+      if (result.length === 0) {
         return res.status(404).json({
           success: false,
           message: "해당 웹타입을 찾을 수 없습니다.",
         });
       }
 
-      await prisma.web_type_standards.delete({
-        where: { web_type: webType },
-      });
-
       return res.json({
         success: true,
         message: "웹타입이 성공적으로 삭제되었습니다.",
@@ -272,18 +358,16 @@ export class WebTypeStandardController {
       }
 
       // 트랜잭션으로 일괄 업데이트
-      await prisma.$transaction(
-        webTypes.map((item) =>
-          prisma.web_type_standards.update({
-            where: { web_type: item.web_type },
-            data: {
-              sort_order: item.sort_order,
-              updated_by: req.user?.userId || "system",
-              updated_date: new Date(),
-            },
-          })
-        )
-      );
+      await transaction(async (client) => {
+        for (const item of webTypes) {
+          await client.query(
+            `UPDATE web_type_standards
+             SET sort_order = $1, updated_by = $2, updated_date = NOW()
+             WHERE web_type = $3`,
+            [item.sort_order, req.user?.userId || "system", item.web_type]
+          );
+        }
+      });
 
       return res.json({
         success: true,
@@ -302,19 +386,17 @@ export class WebTypeStandardController {
   // 웹타입 카테고리 목록 조회
   static async getWebTypeCategories(req: Request, res: Response) {
     try {
-      const categories = await prisma.web_type_standards.groupBy({
-        by: ["category"],
-        where: {
-          is_active: "Y",
-        },
-        _count: {
-          category: true,
-        },
-      });
+      const categories = await query<{ category: string; count: string }>(
+        `SELECT category, COUNT(*) as count
+         FROM web_type_standards
+         WHERE is_active = 'Y'
+         GROUP BY category`,
+        []
+      );
 
       const categoryList = categories.map((item) => ({
         category: item.category,
-        count: item._count.category,
+        count: parseInt(item.count, 10),
       }));
 
       return res.json({