我尝试这样做 CREATE FUNCTION getOneCentOrderIds (s text) RETURNS text
BEGIN
DECLARE no_more_orders, ent_id INT default 0;
DECLARE ids text;
DECLARE orders_cur CURSOR FOR SELECT entity_id FRO
该函数返回NULL: CREATE FUNCTION `GetCardID`(numId INT) RETURNS int(11)
DETERMINISTIC
BEGIN
DECLARE retcard INT(11);
SELECT id
INTO retcard
FROM cards
WHERE `number` = numId
我想编写一个程序: CREATE PROCEDURE `addByType`(IN myDate DATETIME, IN myType INT, OUT output DATETIME)
BEGIN
DECLARE unit ?;
CASE
WHEN myType = 1 THEN
SET unit = HOUR;
WHEN myType = 2 THE