diff --git a/team1/src/main/java/com/example/demo/repository/Book_CollectionRepository.java b/team1/src/main/java/com/example/demo/repository/Book_CollectionRepository.java
index fa8e416..39c6c80 100644
--- a/team1/src/main/java/com/example/demo/repository/Book_CollectionRepository.java
+++ b/team1/src/main/java/com/example/demo/repository/Book_CollectionRepository.java
@@ -1,7 +1,6 @@
 package com.example.demo.repository;
 
 import java.util.List;
-import java.util.Optional;
 
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
@@ -26,7 +25,4 @@ public interface Book_CollectionRepository extends JpaRepository<Book_collection
 			@Param("nmBook") String nmBook,
 			@Param("pubLisher") String pubLisher,
 			@Param(" noteText") String noteText);
-	
-	//findByIDメソッドを明記しデータベースの主キーを指定、entity取得
-	Optional<Book_collectionEntity>findById(Integer id);
 }