Question

查询是：

插入char_inventory（charid，location，slot，itemid，quantity）值（从chars中选择charid，其中charid不在（从char_inventory中选择charid，其中itemid = 65535），0,0,65535,10000）;

Answer 1

在INSERT INTO...SELECT

中使用LEFT JOIN语句

INSERT INTO char_inventory (charid, location, slot, itemid, quantity) 
SELECT  chars.charid, 0 , 0, 65535, 10000
FROM    chars
        LEFT JOIN char_inventory
            ON  chars.charid = char_inventory.charid AND
                char_inventory.itemid = 65535
WHERE   char_inventory.charid IS NULL

Answer 2

这个怎么样

insert into char_inventory (charid,location,slot,itemid,quantity) 
select charid,0,0,65535,10000 from chars where charid not in (select charid from char_inventory where itemid=65535)

Answer 3

请改为尝试：

insert into char_inventory (charid,location,slot,itemid,quantity)
    select charid,0,0,65535,10000
    from chars
    where charid not in (select charid from char_inventory where itemid=65535)

SQL查询：游戏服务器。如果我打破查询，它的工作原理。如果我把它们放在一起，就会失败

3 个答案: