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2208/天天乐学考试答案/MySQL练习（一）.md

@@ -258,7 +258,7 @@ HAVING COUNT(*) = ( #子查询用来统计这个类别中 数量最多的作者
 	LIMIT 1
 );
 
-#10
+#10 触发器
 DELIMITER $$
 DROP TRIGGER IF EXISTS tri_updateCentury;
 CREATE TRIGGER tri_updateCentury
@@ -287,5 +287,18 @@ DELIMITER ;
 
 SELECT CONCAT(FLOOR(YEAR(publication_date)/100) + 1, '世纪')
 FROM tb_books;
+
+#11 存储过程
+DELIMITER $$
+DROP PROCEDURE IF EXISTS pro_GetTopFictionPrice;
+CREATE PROCEDURE pro_GetTopFictionPrice(IN in_genre VARCHAR(255), OUT out_title VARCHAR(255))
+BEGIN
+	SELECT b.title INTO out_title
+	FROM tb_books b
+	WHERE b.genre = in_genre AND YEAR(b.publication_date) BETWEEN 2000 AND 2099
+	ORDER BY b.price DESC
+	LIMIT 1;
+END $$
+DELIMITER ;
 ```