From a911ec0c9b29092dd5f3fe12c84dcc120610221b Mon Sep 17 00:00:00 2001
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Date: Thu, 19 Jun 2025 07:37:41 +0000
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Signed-off-by: 刘禹佳 <13981807+liu-yujia2024@user.noreply.gitee.com>
---
 ...\260\350\275\254\350\264\246\343\200\2021" | 108 ++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 "\351\200\232\350\277\207\345\255\230\345\202\250\350\277\207\347\250\213\345\256\236\347\216\260\350\275\254\350\264\246\343\200\2021"

diff --git "a/\351\200\232\350\277\207\345\255\230\345\202\250\350\277\207\347\250\213\345\256\236\347\216\260\350\275\254\350\264\246\343\200\2021" "b/\351\200\232\350\277\207\345\255\230\345\202\250\350\277\207\347\250\213\345\256\236\347\216\260\350\275\254\350\264\246\343\200\2021"
new file mode 100644
index 0000000..6f75de9
--- /dev/null
+++ "b/\351\200\232\350\277\207\345\255\230\345\202\250\350\277\207\347\250\213\345\256\236\347\216\260\350\275\254\350\264\246\343\200\2021"
@@ -0,0 +1,108 @@
+DELIMITER //
+
+CREATE PROCEDURE transfer_money(
+    IN p_from_card CHAR(19),      -- 转出卡号
+    IN p_to_card CHAR(19),        -- 转入卡号
+    IN p_amount DECIMAL(18,2),    -- 转账金额
+    OUT p_result BOOLEAN,         -- 操作结果
+    OUT p_message VARCHAR(255)    -- 结果消息
+)
+proc_label: BEGIN
+    DECLARE v_from_balance DECIMAL(18,2);  -- 转出账户余额
+    DECLARE v_from_customerid INT;         -- 转出账户客户ID
+    DECLARE v_to_customerid INT;           -- 转入账户客户ID
+    DECLARE v_from_currency CHAR(3);       -- 转出账户货币类型
+    DECLARE v_to_currency CHAR(3);         -- 转入账户货币类型
+    DECLARE v_to_new_balance DECIMAL(18,2); -- 转入账户新余额
+    
+    -- 初始化输出参数
+    SET p_result = FALSE;
+    SET p_message = '';
+    
+    -- 检查转账金额是否有效
+    IF p_amount <= 0 THEN
+        SET p_message = '转账金额必须大于零';
+        LEAVE proc_label;
+    END IF;
+    
+    -- 检查转出账户是否存在且未挂失
+    SELECT balance, customerid, curid INTO v_from_balance, v_from_customerid, v_from_currency
+    FROM cardInfo 
+    WHERE cardid = p_from_card AND isreportloss = '否';
+    
+    IF v_from_balance IS NULL THEN
+        SET p_message = '转出账户不存在或已挂失';
+        LEAVE proc_label;
+    END IF;
+    
+    -- 检查转入账户是否存在且未挂失
+    SELECT customerid, curid INTO v_to_customerid, v_to_currency
+    FROM cardInfo 
+    WHERE cardid = p_to_card AND isreportloss = '否';
+    
+    IF v_to_customerid IS NULL THEN
+        SET p_message = '转入账户不存在或已挂失';
+        LEAVE proc_label;
+    END IF;
+    
+    -- 检查转出账户余额是否足够
+    IF v_from_balance < p_amount THEN
+        SET p_message = '转出账户余额不足';
+        LEAVE proc_label;
+    END IF;
+    
+    -- 检查货币类型是否一致
+    IF v_from_currency <> v_to_currency THEN
+        SET p_message = '不同货币类型账户之间不能直接转账';
+        LEAVE proc_label;
+    END IF;
+    
+    -- 开始事务
+    START TRANSACTION;
+    
+    -- 更新转出账户余额
+    UPDATE cardInfo 
+    SET balance = balance - p_amount 
+    WHERE cardid = p_from_card;
+    
+    -- 检查更新是否成功
+    IF ROW_COUNT() = 0 THEN
+        ROLLBACK;
+        SET p_message = '更新转出账户失败';
+        LEAVE proc_label;
+    END IF;
+    
+    -- 更新转入账户余额
+    UPDATE cardInfo 
+    SET balance = balance + p_amount 
+    WHERE cardid = p_to_card;
+    
+    -- 检查更新是否成功
+    IF ROW_COUNT() = 0 THEN
+        ROLLBACK;
+        SET p_message = '更新转入账户失败';
+        LEAVE proc_label;
+    END IF;
+    
+    -- 获取转入账户新余额
+    SELECT balance INTO v_to_new_balance FROM cardInfo WHERE cardid = p_to_card;
+    
+    -- 记录转出交易
+    INSERT INTO tradeInfo(tradeDate, tradeType, cardID, tradeMoney, remark)
+    VALUES (NOW(), '转账', p_from_card, p_amount, 
+           CONCAT('转账到账户:', p_to_card, '，新余额:', (v_from_balance - p_amount)));
+    
+    -- 记录转入交易
+    INSERT INTO tradeInfo(tradeDate, tradeType, cardID, tradeMoney, remark)
+    VALUES (NOW(), '转账', p_to_card, p_amount, 
+           CONCAT('从账户:', p_from_card, '转入，新余额:', v_to_new_balance));
+    
+    -- 提交事务
+    COMMIT;
+    
+    -- 设置成功结果
+    SET p_result = TRUE;
+    SET p_message = '转账成功';
+END //
+
+DELIMITER ;
\ No newline at end of file
-- 
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