From 7e17afdcd39f2750d5cfcf3741399d8aa9c39a0c Mon Sep 17 00:00:00 2001
From: Zhang Peng <forbreak@163.com>
Date: Wed, 2 May 2018 15:55:02 +0800
Subject: [PATCH] =?UTF-8?q?:bookmark:=20TCL=20=E7=A4=BA=E4=BE=8B?=
MIME-Version: 1.0
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---
 codes/mysql/tcl_demo.sql | 43 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 codes/mysql/tcl_demo.sql

diff --git a/codes/mysql/tcl_demo.sql b/codes/mysql/tcl_demo.sql
new file mode 100644
index 0000000..fac5baa
--- /dev/null
+++ b/codes/mysql/tcl_demo.sql
@@ -0,0 +1,43 @@
+/**
+ * Mysql TCL 语句示例
+ * @author Zhang Peng
+ * @date 2018/5/2
+ */
+
+#############################################################
+# 运行本例的预置操作
+#############################################################
+
+-- 新建数据表 user
+DROP TABLE IF EXISTS `user`;
+CREATE TABLE `user` (
+  `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Id',
+  `username` varchar(64) NOT NULL DEFAULT 'default' COMMENT '用户名',
+  `password` varchar(64) NOT NULL DEFAULT 'default' COMMENT '密码',
+  `email` varchar(64) NOT NULL DEFAULT 'default' COMMENT '邮箱',
+  PRIMARY KEY (`id`)
+) COMMENT='用户表';
+
+#############################################################
+# 事务操作
+#############################################################
+
+-- 开始事务
+START TRANSACTION;
+
+-- 插入操作A
+INSERT INTO `user`
+VALUES (1, 'root1', 'root1', 'xxxx@163.com');
+
+-- 创建保留点 updateA
+SAVEPOINT updateA;
+
+-- 插入操作B
+INSERT INTO `user`
+VALUES (2, 'root2', 'root2', 'xxxx@163.com');
+
+-- 回滚到保留点 updateA
+ROLLBACK TO updateA;
+
+-- 提交事务，只有操作A生效
+COMMIT;