C# 使用C创建oracle事务#

我使用oracle事务将一个主表和两个明细表同时插入到多个表中。因此，我将向主表插入一条记录，并向其他两个表插入多条记录。 如果所有表中的操作成功，我需要返回值1；如果发生错误，我将返回0；如果主表中已经存在数据，我将返回3。我需要用c#来做这件事，这是我的代码， 以及如何修改代码以使用循环插入其他表

public int RunOracleTransaction(Student s, Marks[] m, Course []s)
{
using (OracleConnection connection = new OracleConnection(connectionString))
{
    connection.Open();

    OracleCommand command = connection.CreateCommand();
    OracleTransaction transaction;

    // Start a local transaction
    transaction = connection.BeginTransaction(IsolationLevel.ReadCommitted);
    // Assign transaction object for a pending local transaction
    command.Transaction = transaction;

    try
    {
      // what i shall do to insert 1 record to master data and multi records //to details data as one transaction ?
    }
    catch (Exception e)
    {
        transaction.Rollback();
        Console.WriteLine(e.ToString());
        Console.WriteLine("Neither record was written to database.");
    }
}
}

---

您几乎已经实现了它：

public int RunOracleTransaction(Student s, Marks[] m, Course[] c) {
  //TODO: validate s, m, c

  using (OracleConnection connection = new OracleConnection(connectionString)) {
    connection.Open();

    using (OracleCommand command = connection.CreateCommand()) {
      using (OracleTransaction transaction = connection.BeginTransaction(IsolationLevel.ReadCommitted)) {
        command.Transaction = transaction;

        try {
          // Insert the student
          //TODO: put actual query here 
          command.CommandText = 
            @"insert into Students(name)
                   values (:prm_Name)
                returning id into :prm_id"; // <- we want inserted student's id

          //TODO: check actual RDBMS types 
          command.Parameters.Add(":prm_Name", OracleType.VarChar).Value = s.Name;
          command.Parameters.Add(":prm_Id", OracleType.VarChar).Direction = ParameterDirection.Output;

          command.ExecuteNonQuery(); 

          string studentId = Convert.ToString(comm.Parameters[":prm_Id"].Value);

          // Insert his/her marks
          command.Parameters.Clear(); // <- forget all prior parameters

          //TODO: put actual query here 
          command.CommandText = 
            @"insert into StudentsMarks(student_Id, mark)
                   values (:prm_Student_Id, :prm_Mark)";

          //TODO: check actual RDBMS types 
          command.Parameters.Add(":prm_Student_Id", OracleType.VarChar).Value = studentId;
          command.Parameters.Add(":prm_Mark", OracleType.Int32);

          // insert each mark (in a loop)
          foreach (var mark in m) {
            command.Parameters[":prm_Mark"].Value = m.Mark;
            command.ExecuteNonQuery();  
          }

          // Finally, commit all the inserts
          transaction.Commit();
        }
        catch (DataException e) {
          transaction.Rollback();

          Console.WriteLine(e.ToString());
          Console.WriteLine("Neither record was written to database.");
        }
      }
    } 
  }

  //TODO: your method returns integer value, please return it  
}

public int RunOracleTransaction（学生s，分数[]m，课程[]c）{
//TODO:验证s、m、c
使用（OracleConnection连接=新的OracleConnection（connectionString））{
connection.Open（）；
使用（OracleCommand=connection.CreateCommand（））{
使用（OracleTransaction=connection.BeginTransaction（IsolationLevel.ReadCommitted））{
command.Transaction=事务；
试一试{
//插入学生
//TODO:将实际查询放在此处
command.CommandText=
@“插入学生（姓名）
值（：prm_名称）
将id返回到：prm_id”；//您肯定需要实例化
OracleTransaction
；您还应该使用using块来确保它完成。调用
Commit
以避免回滚。谢谢，但它会给我以下错误“对象引用未设置为对象实例”。尝试定义事务时OracleTransaction=connection.BeginTransaction（IsolationLevel.ReadCommitted）