OracleCommand命令,ExecuteNonQuery问题

Question

我必须清除oracle数据库中的某些表,但是当我遇到运行以下代码的问题时

public static void ClearDataTables(IList<string> tableNames)
        {
            string connectionString = "CONNECTIONSTRING";
            using (OracleConnection connection = new OracleConnection())
            {
                connection.ConnectionString = connectionString;
                connection.Open();
                foreach (string table in tableNames)
                {
                    OracleCommand command = connection.CreateCommand();
                    string sql = String.Format("DELETE FROM TOA_REPORTING.{0}", table);
                    command.CommandText = sql;
                    command.ExecuteNonQuery();
                }
                connection.Close();
            }
        }

我用这个列表调用这个方法

ClearDataTables(new List<string> { "GROUP_DEFINITION", "GROUP_REPORT_EMAIL_LIST", "GROUP_EQUIPMENT_GROUP_STN_XREF"});

它可以很好地运行前两个表,但是在第三个表上,它会卡住,应用程序会永远运行...

有趣的是,当我切换"GROUP_REPORT_EMAIL_LIST"和"GROUP_EQUIPMENT_GROUP_STN_XREF"时,应用程序在命中第二个表名后永远运行.

总而言之,当函数命中"GROUP_EQUIPMENT_GROUP_STN_XREF"时,该函数将永远运行.我已经验证了生成的SQL是通过在toad上测试它来实现的.

其他人遇到过这个问题？

编辑 - 前两个表确实在运行时被清除.

解

string connectionString = "CONNECTIONSTRING";
            using (OracleConnection connection = new OracleConnection(connectionString))
            {
                connection.Open();
                OracleCommand command = connection.CreateCommand();
                OracleTransaction trans = connection.BeginTransaction();
                command.Transaction = trans;
                foreach (string table in tableNames)
                {
                    string sql = String.Format("DELETE FROM TOA_REPORTING.{0}", table);
                    command.CommandText = sql;
                    command.ExecuteNonQuery();
                }
                trans.Commit();
            }

TRUNCATE本来是一个非常好的解决方案,但我没有这样做的权限!

Answer 1

您是否忘记在Toad(或任何其他客户)中提交更改？开放交易将导致其无限期等待.