mysql - SQL 触发器未执行...做错了什么？

Question

我有这个:

这是之前在 chars_insert 上的内容。

BEGIN
    IF EXISTS (SELECT * FROM chars WHERE accid = NEW.accid)
    BEGIN
            INSERT INTO `char_vars` SET `charid = NEW.charid, `varname` = `NotFirstChar`, `value` = 1;
    END

    INSERT INTO `char_equip`     SET `charid` = NEW.charid;
    INSERT INTO `char_exp`       SET `charid` = NEW.charid;
    INSERT INTO `char_jobs`      SET `charid` = NEW.charid;
    INSERT INTO `char_pet`  SET `charid` = NEW.charid;
    INSERT INTO `char_points`    SET `charid` = NEW.charid;
    INSERT INTO `char_profile`   SET `charid` = NEW.charid;
    INSERT INTO `char_storage`   SET `charid` = NEW.charid;
    INSERT INTO `char_inventory` SET `charid` = NEW.charid;
END

我刚刚添加了 IF EXISTS 部分...这打破了触发器。我试图查找一个 accountid 是否已经有一个字符，如果有，则向创建的字符添加一个变量，表示这不是他们的第一个字符。它说错误出现在 IF EXISTS 行，但我没有看到错误...请帮忙？

Answer 1

尝试按以下方式更改 MySQL 的代码:

BEGIN
    IF EXISTS (SELECT * FROM chars WHERE accid = NEW.accid) THEN
            INSERT INTO `char_vars` SET `charid` = NEW.charid, `varname` = `NotFirstChar`, `value` = 1;
    END IF;

    INSERT INTO `char_equip`     SET `charid` = NEW.charid;
    INSERT INTO `char_exp`       SET `charid` = NEW.charid;
    INSERT INTO `char_jobs`      SET `charid` = NEW.charid;
    INSERT INTO `char_pet`  SET `charid` = NEW.charid;
    INSERT INTO `char_points`    SET `charid` = NEW.charid;
    INSERT INTO `char_profile`   SET `charid` = NEW.charid;
    INSERT INTO `char_storage`   SET `charid` = NEW.charid;
    INSERT INTO `char_inventory` SET `charid` = NEW.charid;
END

此外，如果您的 NotFirstChars 是一个常量字符串(不是字段名称)，您应该更改引号:'NotFirstChars'