下面就將為您介紹如何使用事務(wù)一次處理多條SQL語句的方法，包括SQL中事務(wù)的寫法以及調(diào)用的方法供您參考，希望對(duì)您學(xué)習(xí)SQL語句的執(zhí)行能夠有所幫助。

執(zhí)行一個(gè)操作時(shí)，要同時(shí)修改多張表里的數(shù)據(jù)，并且每條數(shù)據(jù)都必須操作成功，才算執(zhí)行成功，為了防止有些數(shù)據(jù)操作失敗，有些成功，而造成的數(shù)據(jù)錯(cuò)亂，我們要使用事務(wù)。

事務(wù)就是：只有所有操作都成功則成功，只要有一條數(shù)據(jù)操作失敗，則回滾。

后臺(tái)寫事務(wù)：

        /// <summary>
        /// 執(zhí)行多條SQL語句，實(shí)現(xiàn)數(shù)據(jù)庫(kù)事務(wù)。
       /// </summary> access數(shù)據(jù)庫(kù)
       /// <param name="SQLStringList">多條SQL語句</param>  
        public static void ExecuteSqlTran(List<string> 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);
                }
            }
        }

        /// <summary>
        /// 執(zhí)行多條SQL語句，實(shí)現(xiàn)數(shù)據(jù)庫(kù)事務(wù)。
        /// </summary>sql2000數(shù)據(jù)庫(kù)
        /// <param name="SQLStringList">多條SQL語句</param>
        public static void ExecuteSqlTran(List<string> 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);
                }
            }
        }

前臺(tái)調(diào)用：

try
{
    //1.查出會(huì)員余額
    decimal usermoney = SqlDal.EntityUserinfo.GetModel(int.Parse(cookieUserID)).Money;
    //2.修改余額
    decimal Zmoney = usermoney + moAD.Commission;
    //寫SQL語句
    List<string> SQLStringList = new List<string>();
    string clickSql = "insert into [user] (name,age)values('" + 小名 + "','“+4歲+”')";
    string userSql = "update [class] set [name]='" + 幼兒園 + "' where id=" + 2 + " ";
    SQLStringList.Add(clickSql);
    SQLStringList.Add(userSql);
    SqlDal.SqlHelper.ExecuteSqlTran(SQLStringList);

    //數(shù)據(jù)庫(kù)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");
    //替換字符
    ClickTishi = ClickTishi.Replace("[$]", moAD.Commission.ToString("0.00"));
    context.Response.Write(ClickTishi); //輸出
}
catch (Exception ex)
{
    //Response.Write(ex.Message);
    context.Response.Write("操作失?。? + ex.Message); //輸出
}