执行Sql和Oracle滴混合事务

最新推荐文章于 2025-01-13 18:19:24 发布

zxliyao

最新推荐文章于 2025-01-13 18:19:24 发布

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文章标签： sql oracle DbHelper c# asp

本文链接：https://blog.youkuaiyun.com/zxliyao/article/details/115965720

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该篇博客详细描述了一个使用C#实现的SQL事务处理方法，通过SqlTransaction处理多个命令，确保SQL执行遵循特定规则，如必须使用COUNT()格式的查询。遇到违反规则时，事务会回滚并抛出异常。

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        public static int ExecuteSqlTran(List<CommandInfo> list, List<CommandInfo> oracleCmdSqlList)
        {
            using (SqlConnection conn = new SqlConnection(connectionString))
            {
                conn.Open();
                SqlCommand cmd = new SqlCommand();
                cmd.Connection = conn;
                SqlTransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                try
                {
                    foreach (CommandInfo myDE in list)
                    {
                        string cmdText = myDE.CommandText;
                        SqlParameter[] cmdParms = (SqlParameter[])myDE.Parameters;
                        PrepareCommand(cmd, conn, tx, cmdText, cmdParms);
                        if (myDE.EffentNextType == EffentNextType.SolicitationEvent)
                        {
                            if (myDE.CommandText.ToLower().IndexOf("count(") == -1)
                            {
                                tx.Rollback();
                                throw new Exception("违背要求" + myDE.CommandText + "必须符合select count(..的格式");
                                //return 0;
                            }

                            object obj = cmd.ExecuteScalar();
                            bool isHave = false;
                            if (obj == null && obj == DBNull.Value)
                            {
                                isHave = false;
                            }
                            isHave = Convert.ToInt32(obj) > 0;
                            if (isHave)
                            {
                                //引发事件
                                myDE.OnSolicitationEvent();
                            }
                        }
                        if (myDE.EffentNextType == EffentNextType.WhenHaveContine || myDE.EffentNextType == EffentNextType.WhenNoHaveContine)
                        {
                            if (myDE.CommandText.ToLower().IndexOf("count(") == -1)
                            {
                                tx.Rollback();
                                throw new Exception("SQL:违背要求" + myDE.CommandText + "必须符合select count(..的格式");
                                //return 0;
                            }

                            object obj = cmd.ExecuteScalar();
                            bool isHave = false;
                            if (obj == null && obj == DBNull.Value)
                            {
                                isHave = false;
                            }
                            isHave = Convert.ToInt32(obj) > 0;

                            if (myDE.EffentNextType == EffentNextType.WhenHaveContine && !isHave)
                            {
                                tx.Rollback();
                                throw new Exception("SQL:违背要求" + myDE.CommandText + "返回值必须大于0");
                                //return 0;
                            }
                            if (myDE.EffentNextType == EffentNextType.WhenNoHaveContine && isHave)
                            {
                                tx.Rollback();
                                throw new Exception("SQL:违背要求" + myDE.CommandText + "返回值必须等于0");
                                //return 0;
                            }
                            continue;
                        }
                        int val = cmd.ExecuteNonQuery();
                        if (myDE.EffentNextType == EffentNextType.ExcuteEffectRows && val == 0)
                        {
                            tx.Rollback();
                            throw new Exception("SQL:违背要求" + myDE.CommandText + "必须有影响行");
                            //return 0;
                        }
                        cmd.Parameters.Clear();
                    }
                    
                    tx.Commit();
                    return 1;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    tx.Rollback();
                    throw e;
                }
                catch (Exception e)
                {
                    tx.Rollback();
                    throw e;
                }
            }