From 420d3cd44c1d4f46311d38cedcd3c24f54af08b7 Mon Sep 17 00:00:00 2001
From: w-yuki <yukiw@iij.ad.jp>
Date: Fri, 25 Sep 2026 13:29:41 +0900
Subject: [PATCH] =?UTF-8?q?[add]=E3=82=B5=E3=83=96=E3=82=AB=E3=83=86?=
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---
 .../demo/repository/SubCategoryRepository.java       | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 src/main/java/com/example/demo/repository/SubCategoryRepository.java

diff --git a/src/main/java/com/example/demo/repository/SubCategoryRepository.java b/src/main/java/com/example/demo/repository/SubCategoryRepository.java
new file mode 100644
index 0000000..7a2ea13
--- /dev/null
+++ b/src/main/java/com/example/demo/repository/SubCategoryRepository.java
@@ -0,0 +1,12 @@
+package com.example.demo.repository;
+import java.util.List;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import com.example.demo.entity.BookSubcategory;
+
+public interface SubCategoryRepository
+        extends JpaRepository<BookSubcategory,Integer> {
+	List<BookSubcategory> findByBookCategory_BookCategoryId(Integer bookCategoryId);
+
+}
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