mysql - mysql存储过程语法错误:

我有一个mysql存储过程，它给我以下错误：

＃1064-您的SQL语法有误；检查与您的MySQL服务器版本对应的手册以获取正确的语法，以在“ set inffer ='select home（select max（offerid）from home）if（intoffer IS NULL）then set int”附近使用

我在定界符框中将定界符设置为;。存储过程为

create procedure sp()
begin
declare intoffer int
set intoffer = 'select max(offerid) from home'
if(intoffer IS NULL) then
set intoffer=1
else
set intoffer=intoffer+1
insert into home(offerid,offerheader,offertext,offerimage,offerlink) values(intoffer,'d','d','d','d')
end;

最佳答案

有一些语法和其他错误。试试这个代码-

CREATE PROCEDURE sp()
BEGIN
  DECLARE intoffer INT;

  SELECT max(offerid) INTO intoffer FROM home;
  IF (intoffer IS NULL) THEN
    SET intoffer = 1;
  ELSE
    SET intoffer = intoffer + 1;
  END IF;
  INSERT INTO home (offerid, offerheader, offertext, offerimage, offerlink) VALUES (intoffer, 'd', 'd', 'd', 'd');
END