diff --git a/backend-spring/src/main/java/com/erp/batch/BatchExecutor.java b/backend-spring/src/main/java/com/erp/batch/BatchExecutor.java
index a1d814f2..30438e01 100644
--- a/backend-spring/src/main/java/com/erp/batch/BatchExecutor.java
+++ b/backend-spring/src/main/java/com/erp/batch/BatchExecutor.java
@@ -6,7 +6,6 @@ import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.ibatis.session.SqlSession;
 import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
 
 import java.sql.Connection;
 import java.sql.PreparedStatement;
@@ -222,7 +221,8 @@ public class BatchExecutor {
 
     // ── TO 저장 ────────────────────────────────────────────────────────────
 
-    @Transactional
+    // 트랜잭션은 의도적으로 걸지 않음 — batch 의 정상 동작은 row 단위 독립 commit.
+    // 일부 row 가 실패해도 다른 row 는 살아야 successCount/failedCount 집계가 의미 있음.
     public WriteResult writeTo(
             Map<String, Object> firstMapping,
             List<Map<String, Object>> rows,
diff --git a/backend-spring/src/main/java/com/erp/service/BatchManagementService.java b/backend-spring/src/main/java/com/erp/service/BatchManagementService.java
index c39e2676..c69f202f 100644
--- a/backend-spring/src/main/java/com/erp/service/BatchManagementService.java
+++ b/backend-spring/src/main/java/com/erp/service/BatchManagementService.java
@@ -161,7 +161,9 @@ public class BatchManagementService extends BaseService {
             Map<String, Object> updateLog = new LinkedHashMap<>();
             updateLog.put("id", logId);
             updateLog.put("execution_status", status);
-            updateLog.put("end_time", new java.sql.Timestamp(System.currentTimeMillis()).toString());
+            // PostgreSQL JDBC 드라이버가 Timestamp → timestamp 자동 변환.
+            // mapper 의 #{end_time}::timestamp 캐스트는 noop 으로 안전.
+            updateLog.put("end_time", new java.sql.Timestamp(System.currentTimeMillis()));
             updateLog.put("duration_ms", duration);
             updateLog.put("total_records",   execResult != null ? execResult.totalRecords   : 0);
             updateLog.put("success_records", execResult != null ? execResult.successRecords : 0);