更新行的MySQL过程

Question

我无法获得以下工作。我究竟做错了什么？

DELIMITER // 
CREATE PROCEDURE base_insert 
(IN in_visitor_id VARCHAR (256), IN in_booking_ref VARCHAR (256), IN in_stage_name VARCHAR (256), IN in_difficulty VARCHAR (256), IN in_lead_quality VARCHAR (256)) 
BEGIN 
    UPDATE visitors 
    SET 
     booking_ref = in_booking_ref, 
     deal_stage = in_deal_stage, 
     deal_difficulty = in_deal_difficulty, 
     lead_quality = in_lead_quality 
    WHERE visitor_id = in_visitor_id// 
END// 
DELIMITER ; 

Answer 1

从删除// WHERE

DELIMITER // 
CREATE PROCEDURE base_insert 
(IN in_visitor_id VARCHAR (256), IN in_booking_ref VARCHAR (256), IN in_stage_name VARCHAR (256), IN in_difficulty VARCHAR (256), IN in_lead_quality VARCHAR (256)) 
BEGIN 
    UPDATE visitors 
    SET 
     booking_ref = in_booking_ref, 
     deal_stage = in_deal_stage, 
     deal_difficulty = in_deal_difficulty, 
     lead_quality = in_lead_quality 
    WHERE visitor_id = in_visitor_id; 
END// 
DELIMITER ;