使用MySql根据账户表来创建存储过程，实现两个账户转账，转出账户A，转入账户B，转账前需要判断转账金额大于账户余额，转账成功后输入账户A和账户B的余额信息

好的，以下是针对您的问题编写的MySQL存储过程代码：

DELIMITER //
CREATE PROCEDURE transfer_money(IN accountA INT, IN accountB INT, IN amount DECIMAL(10,2))
BEGIN
    DECLARE balanceA DECIMAL(10,2);
    DECLARE balanceB DECIMAL(10,2);

    -- 获取账户A和账户B的余额
    SELECT balance INTO balanceA FROM account WHERE id = accountA;
    SELECT balance INTO balanceB FROM account WHERE id = accountB;

    -- 判断账户A的余额是否足够
    IF balanceA < amount THEN
        SELECT '转账失败，账户A余额不足' AS message;
    ELSE
        -- 开始转账
        START TRANSACTION;
        UPDATE account SET balance = balanceA - amount WHERE id = accountA;
        UPDATE account SET balance = balanceB + amount WHERE id = accountB;

        -- 获取转账后账户A和账户B的余额
        SELECT balance INTO balanceA FROM account WHERE id = accountA;
        SELECT balance INTO balanceB FROM account WHERE id = accountB;

        -- 提交事务并输出转账成功信息及账户A和账户B的余额
        COMMIT;
        SELECT '转账成功' AS message, balanceA AS '账户A余额', balanceB AS '账户B余额';
    END IF;
END //
DELIMITER ;

其中，`account`表是您存储账户信息的表，包含以下字段：

- `id`：账户ID
- `balance`：账户余额

在调用该存储过程时，需要传入以下参数：

- `accountA`：转出账户A的账户ID
- `accountB`：转入账户B的账户ID
- `amount`：转账金额

例如，调用语句可以是：

CALL transfer_money(1, 2, 100.00);

其中，`1`和`2`分别代表账户A和账户B的账户ID，`100.00`代表转账金额。调用成功后，将会输出转账成功或失败的信息，以及账户A和账户B的余额。