diff --git a/rds_mysql/stored_procedure/medaca_common/convert_to_date.sql b/rds_mysql/stored_procedure/medaca_common/convert_to_date.sql
new file mode 100644
index 00000000..e5bcf3dd
--- /dev/null
+++ b/rds_mysql/stored_procedure/medaca_common/convert_to_date.sql
@@ -0,0 +1,17 @@
+-- A5M2で実行時に[SQL] - [スラッシュ(/)のみの行でSQLを区切る]に変えてから実行する
+CREATE FUNCTION medaca_common.convert_to_date(date_string VARCHAR(255), _format VARCHAR(50)) RETURNS datetime
+	DETERMINISTIC
+BEGIN
+	DECLARE converted_date DATETIME;
+
+	DECLARE EXIT HANDLER FOR SQLEXCEPTION
+	BEGIN
+		-- エラー発生時にNULLを返す
+		RETURN NULL;
+	END;
+
+	-- 日付変換の実行
+	SET converted_date = STR_TO_DATE(date_string, _format);
+
+	RETURN converted_date;
+END
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