#創建存儲過程或函數實現傳入一個日期,格式化成xx年xx月xx日並返回
DELIMITER $
CREATE PROCEDURE pp(IN mydate DATETIME,OUT nowdate VARCHAR(50) )
BEGIN
SELECT DATE_FORMAT(mydate,'%y年%m月%d日') INTO nowdate;
END $
CALL pp(NOW(),@nowdate)$
SELECT @nowdate$
#創建存儲過程實現傳入女神名稱,返回女神and男神 格式的字符串
CREATE PROCEDURE pp2(IN bName VARCHAR(20),OUT tname VARCHAR(50))
BEGIN
SELECT CONCAT(bName,'and',IFNULL(bo.boyname,'null')) INTO tname
FROM beauty b
LEFT JOIN boys bo
ON b.boyfriend_id=bo.id
WHERE b.name=bName;
END $
CALL pp2('小昭',@tname) $
SELECT @tname $
#創建存儲過程,根據傳入的條目數和起始索引,查詢beauty表的記錄
CREATE PROCEDURE pp3(IN n INT,IN m INT)
BEGIN
SELECT *
FROM beauty
LIMIT m,n;
END $
CALL pp3(3,5)$