存储过程：数据截断：截断不正确DOUBLE值

Question

我缺乏经验，构建存储过程也碰到了这个错误，我不明白背后的原因：

[2015年9月29日1时01分55秒] [22001] [1292]数据截断：截断不正确DOUBLE值： '5609d3e6c89be'

值 '5609d3e6c89be' 是 “FLIGHTID”。

我的存储过程的代码：

DROP PROCEDURE IF EXISTS initFlight; 
CREATE PROCEDURE initFlight (flightid VARCHAR(50)) 
BEGIN 

    -- rules, player should only fly if not in jail, not in missions 
    -- and is in the city the flight will take off from 
    DECLARE fname VARCHAR(50); -- flight name 
    DECLARE depart int; -- city number of departure 
    DECLARE dest int; -- city number of destination 

    -- assign values to our variables 
    select flightname, source_airport, destination_airport 
    into fname, depart, dest 
    from airport_flights where id = flightID; 

    -- show in console the variable values for debugging 
    -- select concat(" fname: ", fname, " depart: ", depart, " dest: ", dest); 

    -- set players flying means p.live = '-1' 
    update `[players]` as p set p.live = '-1' where p.id in (
    select id from airport_tickets where flight = flightID 
) and p.live = depart; 

    -- insert into alerts a message for players boarding the flight (are in the city of departure) 
    insert into player_alerts (alert_text, player_id) 
    select concat("Boarding flight ", fname) as alert_text, p.id as player_id from `[players]` as p 
    where p.id in (
     select id from airport_tickets where flight = flightID 
    ) and p.live = depart; 

    -- insert into alerts a message for players that missed the flight (are not in the city of departure) 
    insert into player_alerts (alert_text, player_id) 
    select concat("You missed flight ", fname) as alert_text, id as player_id from `[players]` as p 
    where p.id in (
     select id from airport_tickets where flight = flightID 
    ) and p.live != depart; 

    -- stop sales 
    update airport_flights set selling_tickets = 0 where id = flightID; 

END; 
call initFlight('5609d3da016bf'); 

这到底是怎么回事？为什么我的“字符串”被转换为双精度，然后被截断？

airport_flights.id is varchar(50) 
airport_flights.source_airport is int(11) 
airport_flights.destination_airport is int(11) 

airport_tickets.id is varchar(50) 
airport_tickets.flight is varchar(50) 
airport_tickets.owner_id is int(11) 


`[players]`.id is int(11) 
`[players]`.live is int(11) 
`[players]`.name is varchar(200) 

player_alerts.id is int(11) 
player_alerts.alert_text is varchar(250) 

PS：如果你需要更多的信息，让我知道和批评是一如既往欢迎

Answer 1

多跳车左右，我发现这个问题是在子查询我在那里混合后airport_tickets.id（varchar）与player.id（int），当我想将player_tickets.owner_id与player.id匹配时。

我只在删除所有内容并将其重写为删除任何代码失明（当您的大脑读取它认为代码执行的内容而不是实际写入的内容时）的措施时才发现这一点。