事务一次处理多条SQL语句

下面就将为您介绍如何使用事务一次处理多条SQL语句的方法，包括SQL中事务的写法以及调用的方法供您参考，希望对您学习SQL语句的执行能够有所帮助  。

　　执行一个操作时，要同时修改多张表里的数据，并且每条数据都必须操作成功，才算执行成功，为了防止有些数据操作失败，有些成功，而造成的数据错乱，我们要使用事务  。

　　事务就是：只有所有操作都成功则成功，只要有一条数据操作失败，则回滚  。

　　后台写事务：

　　        ///
        /// 执行多条SQL语句，实现数据库事务  。
       /// access数据库
       ///多条SQL语句  
        public static void ExecuteSqlTran(List SQLStringList)
        {
            using (OleDbConnection conn = new OleDbConnection(SqlHelper.ConString))
            {
                conn.Open();
                OleDbCommand cmd = new OleDbCommand();
                cmd.Connection = conn;
                OleDbTransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                try
                {
                    for (int n = 0; n < SQLStringList.Count; n++)
                    {
                        string strsql = SQLStringList[n].ToString();
                        if (strsql.Trim().Length > 1)
                        {
                            cmd.CommandText = strsql;
                            cmd.ExecuteNonQuery();
                        }
                    }
                    tx.Commit();
                }
                catch (System.Data.OleDb.OleDbException E)
                {
                    tx.Rollback();
                    throw new Exception(E.Message);
                }
            }
        }

　　        ///
        /// 执行多条SQL语句，实现数据库事务  。
        /// sql2000数据库
        ///多条SQL语句
        public static void ExecuteSqlTran(List SQLStringList)
        {
            using (SqlConnection conn = new SqlConnection(SqlHelper.ConString))
            {
                conn.Open();
                SqlCommand cmd = new SqlCommand();
                cmd.Connection = conn;
                SqlTransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                try
                {
                    for (int n = 0; n < SQLStringList.Count; n++)
                    {
                        string strsql = SQLStringList[n].ToString();
                        if (strsql.Trim().Length > 1)
                        {
                            cmd.CommandText = strsql;
                            cmd.ExecuteNonQuery();
                        }
                    }
                    tx.Commit();
                }
                catch (System.Data.SqlClient.SqlException E)
                {
                    tx.Rollback();
                    throw new Exception(E.Message);
                }
            }
        }

　　前台调用：

　　try
{
    //1.查出会员余额
    decimal usermoney = SqlDal.EntityUserinfo.GetModel(int.Parse(cookieUserID)).Money;
    //2.修改余额
    decimal Zmoney = usermoney + moAD.Commission;
    //写SQL语句
    List SQLStringList = new List();
    string clickSql = "insert into [user] (name,age)values(" + 小名 + ",“+4岁+”)";
    string userSql = "update [class] set [name]=" + 幼儿园 + " where id=" + 2 + " ";
    SQLStringList.Add(clickSql);
    SQLStringList.Add(userSql);
    SqlDal.SqlHelper.ExecuteSqlTran(SQLStringList);

　　    //数据库操作成功
    //提示
    CommonClass.Xmls xmls1 = new CommonClass.Xmls();
    string path1 = CommonClass.Unit.GetMapPath(@"/Admin/Configs/SysSettingInfo.config");
    string ClickTishi = xmls1.GetXmlNode(path1, "SysSettingInfo/ClickTishi");
    //替换字符
    ClickTishi = ClickTishi.Replace("[$]", moAD.Commission.ToString("0.00"));
    context.Response.Write(ClickTishi); //输出
}
catch (Exception ex)
{
    //Response.Write(ex.Message);
    context.Response.Write("操作失败！" + ex.Message); //输出
}

下面将为您介绍如何执行多条SQL语句，实现数据库事务的方法，供您参考，如果您对SQL语句和事务感兴趣的话，不妨一看，详细对您学习SQL大有帮助  。

　　///
    /// 执行多条SQL语句，实现数据库事务  。
    ///
    ///多条SQL语句       
    public static void ExecuteSqlTran(IList SQLStringList)
    {
        using (SqlConnection conn = new SqlConnection(connectionString))
        {
            conn.Open();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = conn;
            SqlTransaction tx = conn.BeginTransaction();
            cmd.Transaction = tx;
            try
            {
                for (int n = 0; n < SQLStringList.Count; n++)
                {
                    string strsql = SQLStringList[n].ToString();
                    if (strsql.Trim().Length > 1)
                    {
                        cmd.CommandText = strsql;
                        cmd.ExecuteNonQuery();
                    }
                }
                tx.Commit();
            }
            catch (System.Data.SqlClient.SqlException E)
            {
                tx.Rollback();
                throw new Exception(E.Message);
            }
        }
    }

　　protected void btnOk_Click(object sender, EventArgs e)
    {
     string upsql = "update 表 set=123 where id=";//省略其他SET
        IList l = new List();
        for (int i = 0; i CheckBox c= (CheckBox)this.DataList1.Items[i].FindControl("CheckBox1");
            TextBox tb = (TextBox)this.DataList1.Items[i].FindControl("TextBox1");
            //下面几个TextBox省略
            if(c.Checked)
            {
                l.Add("update 表 set="+tb.Text+" where id="+ this.DataList1.DataKeys[i].ToString());
            }
        }
        SqlServerHelper.ExecuteSqlTran(l);
    }