在C#中使用存储过程内的全局临时表

时间:2017-08-15 18:59:32

标签: c# oracle

我想在Oracle的程序中使用全局临时表。为此,我创建了一个全局临时表:

CREATE GLOBAL TEMPORARY TABLE temp_test
(id int)
ON COMMIT PRESERVE ROWS;

我也创建了一个程序:

CREATE OR REPLACE PROCEDURE PROC_TEST ( p_recordset OUT SYS_REFCURSOR) AS 
BEGIN
OPEN p_recordset FOR  
 SELECT * FROM temp_test;
EXCEPTION
 WHEN NO_DATA_FOUND THEN
  NULL;
   WHEN OTHERS THEN
    -- Consider logging the error and then re-raise
     RAISE;    
END PROC_TEST;

当我执行在临时表中插入行的过程时,它正常工作:

INSERT INTO temp_test (id) values(1);
INSERT INTO temp_test (id) values(2);
INSERT INTO temp_test (id) values(3);
INSERT INTO temp_test (id) values(4);
INSERT INTO temp_test (id) values(5);
INSERT INTO temp_test (id) values(6);
INSERT INTO temp_test (id) values(7);
INSERT INTO temp_test (id) values(8);
INSERT INTO temp_test (id) values(9);
INSERT INTO temp_test (id) values(10);
INSERT INTO temp_test (id) values(11);

var c refcursor;
execute proc_test(:c);
print c;

但是当我在C#应用程序中运行它时,它不会在此过程中返回任何行,通过以下代码:

using (OracleConnection connection = new OracleConnection(System.Configuration.ConfigurationManager.ConnectionStrings["MyContext"].ToString()))
            {
                connection.Open();
                OracleCommand command = connection.CreateCommand();

                command.CommandText = "DELETE FROM temp_test";
                command.ExecuteNonQuery();

                for (int i = 0; i < 10; i++)
                {
                    command.CommandText = string.Format("INSERT INTO TEMP_INT_1(ID_INT) VALUES ({0})", i);
                    command.ExecuteNonQuery();
                }

                command.CommandText = "PROC_TEST";
                command.CommandType = CommandType.StoredProcedure;

                command.Parameters.Add(new OracleParameter("p_recordset", OracleType.Cursor)).Direction = ParameterDirection.Output;

                OracleDataAdapter adapter = new OracleDataAdapter(command);
                DataSet ds = new DataSet();
                adapter.Fill(ds);



                connection.Close();
            }

如何在C#应用程序中正确返回这些行?

1 个答案:

答案 0 :(得分:1)

我在TEMP_INT_1表中寻找插入行,并试图选择TEMP_TEST表,这就是它无法正常工作的原因。