How to connect to oracle procedure from ASP.NET

Question

0.00/5 (No votes)

See more:

, +

My task is to connect to a stored procedure in Oracle from an asp.net page. The procedure has an output parameter of type record. I am having a problem trying to get a return value from the procedure. And I have to populate a drop down list with the return value.
Any help will be really appreciated.

What I have tried:

string str = "User ID=username;Password=password;Data Source=Test";
OracleConnection conn = new OracleConnection(str);
OracleCommand cmd = new OracleCommand("stored_procedure_name", conn);
cmd.CommandType = CommandType.StoredProcedure;

cmd.Parameters.Add("pv_look_up_code", "varchar2").Value = "HR";
cmd.Parameters.Add("pv_filter1", "varchar2").Value = null;
cmd.Parameters.Add("pv_filter2", "varchar2").Value = null;
cmd.Parameters.Add("pv_filter3, "varchar2").Value = null;
cmd.Parameters.Add("pv_user_id", "varchar2").Value = 1;
cmd.Parameters.Add("pv_app_code", "varchar2").Value = 1;

cmd.Parameters.Add("p_cur_list", "refcurser").Direction = ParameterDirection.InputOutput;
cmd.Parameters.Add("pn_error_code", "decimal").Direction = ParameterDirection.Output;
cmd.Parameters.Add("pv_err_text", "varchar2").Direction = ParameterDirection.IOutput;
cmd.Parameters.Add("pv_err_text_eng", "varchar2").Direction = ParameterDirection.Output;
OracleDataAdapter da = new OracleDataAdapter();

conn.Open();
da.SelectCommand = cmd;
DataSource ds = new DataSource();
da.Fill(ds);

Posted 7-Dec-16 8:35am

Member 12892523

Updated 8-Dec-16 4:58am

Add a Solution

Comments

Wendelius 7-Dec-16 15:59pm

What is the problem you're having?

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

yogeshCJ · Answer 1 · 2016-12-08T01:02:00

Try below :

C#

using Oracle.DataAccess;
using Oracle.DataAccess.Client;

public DataTable GetHeader_BySproc(string unit, string office, string receiptno)
{
    using (OracleConnection cn = new OracleConnection(DatabaseHelper.GetConnectionString()))
    {
        OracleDataAdapter da = new OracleDataAdapter();
        OracleCommand cmd = new OracleCommand();
        cmd.Connection = cn;
        cmd.InitialLONGFetchSize = 1000;
        cmd.CommandText = DatabaseHelper.GetDBOwner() + "PKG_COLLECTION.CSP_COLLECTION_HDR_SELECT";
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.Add("PUNIT", OracleDbType.Char).Value = unit;
        cmd.Parameters.Add("POFFICE", OracleDbType.Char).Value = office;
        cmd.Parameters.Add("PRECEIPT_NBR", OracleDbType.Int32).Value = receiptno;
        cmd.Parameters.Add("T_CURSOR", OracleDbType.RefCursor).Direction = ParameterDirection.Output;

        da.SelectCommand = cmd;
        DataTable dt = new DataTable();
        da.Fill(dt);
        return dt;
    }
}

Nelek · Answer 2 · 2016-12-08T04:58:00

Not sure if only a typo here or a typo in your project as well but...

If you had formatted properly, you would have found:

C#

string str = "User ID=username;Password=password;Data Source=Test";
OracleConnection conn = new OracleConnection(str);
OracleCommand cmd = new OracleCommand("stored_procedure_name", conn);
cmd.CommandType = CommandType.StoredProcedure;

cmd.Parameters.Add("pv_look_up_code", "varchar2").Value = "HR";
cmd.Parameters.Add("pv_filter1", "varchar2").Value = null;
cmd.Parameters.Add("pv_filter2", "varchar2").Value = null;
cmd.Parameters.Add("pv_filter3, "varchar2").Value = null;
cmd.Parameters.Add("pv_user_id", "varchar2").Value = 1;
cmd.Parameters.Add("pv_app_code", "varchar2").Value = 1;

cmd.Parameters.Add("p_cur_list", "refcurser").Direction = ParameterDirection.InputOutput;
cmd.Parameters.Add("pn_error_code", "decimal").Direction = ParameterDirection.Output;
cmd.Parameters.Add("pv_err_text", "varchar2").Direction = ParameterDirection.IOutput;
cmd.Parameters.Add("pv_err_text_eng", "varchar2").Direction = ParameterDirection.Output;
OracleDataAdapter da = new OracleDataAdapter();

conn.Open();
da.SelectCommand = cmd;
DataSource ds = new DataSource();
da.Fill(ds);

and it should be...

C#

string str = "User ID=username;Password=password;Data Source=Test";
OracleConnection conn = new OracleConnection(str);
OracleCommand cmd = new OracleCommand("stored_procedure_name", conn);
cmd.CommandType = CommandType.StoredProcedure;

cmd.Parameters.Add("pv_look_up_code", "varchar2").Value = "HR";
cmd.Parameters.Add("pv_filter1", "varchar2").Value = null;
cmd.Parameters.Add("pv_filter2", "varchar2").Value = null;
cmd.Parameters.Add("pv_filter3", "varchar2").Value = null; // you were missing a quote here (after the 3)
cmd.Parameters.Add("pv_user_id", "varchar2").Value = 1;
cmd.Parameters.Add("pv_app_code", "varchar2").Value = 1;

cmd.Parameters.Add("p_cur_list", "refcurser").Direction = ParameterDirection.InputOutput;
cmd.Parameters.Add("pn_error_code", "decimal").Direction = ParameterDirection.Output;
cmd.Parameters.Add("pv_err_text", "varchar2").Direction = ParameterDirection.IOutput;
cmd.Parameters.Add("pv_err_text_eng", "varchar2").Direction = ParameterDirection.Output;
OracleDataAdapter da = new OracleDataAdapter();

conn.Open();
da.SelectCommand = cmd;
DataSource ds = new DataSource();
da.Fill(ds);

How to connect to oracle procedure from ASP.NET

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0