我在mysql中运行以下过程：
create procedure addSavingAccount(id int(10), account_number varchar(10))
begin
insert into saving values(id,'savings', account_number, 0);
end //
但是，当我尝试调用它时，它给了我这个错误：
mysql> call addSavingAccount(103, 'B505');
ERROR 1136 (21S01): Column count doesn't match value count at row 1
我检查了任何可能与之相关的东西，包括触发器。但一切似乎都应该正常工作。这是我的触发器列表：
create trigger balance_change_saving after update on saving for each row
begin
if old.balance != new.balance
then
insert into balance_update_history values(null, 'saving', new.account_number, old.balance, new.balance,
(SELECT NOW()), (select USER()));
end if;
end//
create trigger balance_insert_saving after insert on saving for each row
begin
insert into balance_update_history values(null, 'saving', new.account_number, 0, new.balance, (select now()),
(select user()));
end //
create trigger balance_delete_saving after delete on saving for each row
begin
insert into balance_update_history values(null, null, null, old.balance, null,
(SELECT NOW()), (select USER()));
end //
这是我定义表格的地方：
create table if not exists saving(account_number varchar(10) , customer_id int(10), balance decimal(8,2), primary key(account_number));
我真的很想弄清楚这一点。