在創建觸發器時在mysql中的錯誤

Question

我有兩個表股票的細節和購買。

當我試圖在表上創建購買觸發它會似乎是一個錯誤

"#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3 " 

聽到的是我的代碼

create TRIGGER afterinsert after insert on purchase for each row 
BEGIN 
set @qnty=(select quantity from stock_detail where brand_name = new.brand); 
if(@qnty>=1) then 
update stock_detail set quantity=@qnty+new.quanty; 
end if; 
END; 

Answer 1

試試這個：

delimiter // 
create TRIGGER afterinsert after insert on purchase for each row 
BEGIN 
set @qnty=(select quantity from stock_detail where brand_name = new.brand); 
if(@qnty>=1) then 
update stock_detail set quantity=@qnty+new.quanty; 
end if; 
END;// 
delimiter ; 

欲瞭解更多信息：http://dev.mysql.com/doc/refman/5.0/en/trigger-syntax.html