如果出现错误，有没有办法停止运行 SQL 脚本？ [复制]

Question

我正在为我的大学期末项目开发一个程序，该程序包括从一个固定文件夹中获取几个 SQL 脚本并执行它们。在与我的项目主管会面时，他说最好确保如果在运行其中一个脚本时检测到错误，程序应该停止运行脚本并停止。而且我在检测到错误后停止程序的部分有问题。帮助将不胜感激。 顺便说一句，这一切都是在 C# (WindowsFormsApp(.NET Framework)) 中完成的。 我展示的脚本完美运行。

        public string ExecuteFiles(string connectionString, string fileName)
        {
            var result = string.Empty;
            //var error = ">> [" + MethodBase.GetCurrentMethod().Name + "]\n";

            try
            {
                string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Updates", fileName);

                string script = File.ReadAllText(path);

                using (SqlConnection connection = new SqlConnection(connectionString))
                {
                    Logger.Debug("Script a ser executado: " + fileName);

                    connection.Open();

                    Server server = new Server(new Microsoft.SqlServer.Management.Common.ServerConnection(connection));

                    server.ConnectionContext.ExecuteNonQuery(script);

                    Logger.Debug("Script executado: " + fileName);
                }
            }
            catch (Microsoft.SqlServer.Management.Common.ConnectionFailureException cfe)
            {
                Logger.Error("Message: " + cfe);
                lblmsg.Text = ">> [Message] => " + cfe.Message + "\n";

            }
            catch (SmoException se)
            {
                Logger.Error("Message: " + se);
                lblmsg.Text = ">> [Message] => " + se.Message + "\n";

            }
            catch (Exception ex)
            {
                Logger.Error("Message: " + ex);
                lblmsg.Text = ">> [Message] => " + ex.Message + "\n";

                if (ex.InnerException is SqlException)
                {              
                    SqlException sqlex = (SqlException)ex.InnerException;
                    lblmsg.Text = ">> [Message] => " + sqlex.Message + "\n";
                    Logger.Error("Message: " + sqlex);
                }
            }
            return result;
        }

Answer 1

当 try 块中抛出错误时，您可以在 catch 语句中添加代码 System.Environment.Exit(0);。

窗口会先提示错误信息，然后退出程序。

您可以尝试以下代码来替换它：

public string ExecuteFiles(string connectionString, string fileName)
        {
            var result = string.Empty;
            //var error = ">> [" + MethodBase.GetCurrentMethod().Name + "]\n";

            try
            {
                string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Updates", fileName);

                string script = File.ReadAllText(path);

                using (SqlConnection connection = new SqlConnection(connectionString))
                {

                    Logger.Debug("Script a ser executado: " + fileName);
                    connection.Open();

                    Server server = new Server(new Microsoft.SqlServer.Management.Common.ServerConnection(connection));

                    server.ConnectionContext.ExecuteNonQuery(script);

                    Logger.Debug("Script executado: " + fileName);
                }
            }
            catch (Microsoft.SqlServer.Management.Common.ConnectionFailureException cfe)
            {
                Logger.Error("Message: " + cfe.Message);
                lblmsg.Text = ">> [Message] => " + cfe.Message + "\n";
                System.Environment.Exit(0);
                

            }
            catch (SmoException se)
            {
                Logger.Error("Message: " + se);
                lblmsg.Text = ">> [Message] => " + se.Message + "\n";
                System.Environment.Exit(0);

            }
            catch (Exception ex)
            {
                Logger.Error("Message: " + ex);
                lblmsg.Text = ">> [Message] => " + ex.Message + "\n";
                
                if (ex.InnerException is SqlException)
                {
                    SqlException sqlex = (SqlException)ex.InnerException;
                    lblmsg.Text = ">> [Message] => " + sqlex.Message + "\n";
                    Logger.Error("Message: " + sqlex);
                    System.Environment.Exit(0);
                }
            }
            return result;
        }

结果：