diff --git a/src/main/java/mpms/service/h2db/BaseDbCommonService.java b/src/main/java/mpms/service/h2db/BaseDbCommonService.java
index 4011e5ac0fecdcf1262540d109f2065f4c1fb791..f683124e947a828d4b789802b495e337eca188c5 100644
--- a/src/main/java/mpms/service/h2db/BaseDbCommonService.java
+++ b/src/main/java/mpms/service/h2db/BaseDbCommonService.java
@@ -70,5 +70,7 @@ public abstract class BaseDbCommonService<T> {
 		return tableName;
 	}
 
-
+	protected String getKey() {
+		return key;
+	}
 }