OracleConnection connection = DBHelper.OracleConnection;
OracleCommand OraCommand = connection.CreateCommand();
OraCommand.CommandText = "AUTHENTICATION.Authenticate";
OraCommand.CommandType = CommandType.StoredProcedure;
int zero = 0;
OracleParameter newParam = null;
OraCommand.Parameters.Add(newParam);
newParam = new OracleParameter("Authenticated", OracleType.VarChar);
newParam.Direction = ParameterDirection.Output;
newParam.Size = 4000;
OraCommand.Parameters.Add(newParam);
newParam = new OracleParameter("Message", OracleType.VarChar);
newParam.Direction = ParameterDirection.Output;
newParam.Size = 4000;
OraCommand.Parameters.Add(newParam);
newParam = new OracleParameter("Response", OracleType.VarChar);
newParam.Direction = ParameterDirection.Output;
newParam.Size = 4000;
OraCommand.Parameters.Add(newParam);
try
{
connection.Open();
OraCommand.ExecuteNonQuery();
connection.Close();
errorLabel.Text = OraCommand.Parameters["Message"].Value.ToString() ;
if (OraCommand.Parameters["Authenticated"].Value.ToString() == "Yes")
{
this.Response.Redirect("Default.aspx", true);
}else
{
errorLabel.Text = OraCommand.Parameters["Message"].Value.ToString() + Request.ServerVariables["SERVER_SOFTWARE"] + OraCommand.Parameters[9].Value.ToString();
}
}
catch (Exception ex)
{
errorLabel.Text = ex.ToString();
}
Expected outputs:
1) Message - You have successfully logged in
but I'm getting a truncated string: You have success
2) Authenticated - Yes
but I'm getting a truncated string
Y
Same code worked fine in IIS 7.5, we upgraded our server to IIS 8.5 now I'm facing this problem .
I did read some articles about ado.net deprecated and use odp.net . I dont want to change my code to ODP.net .
Do you have any thoughts , why my output variables are truncated ??
When we upgraded IIS 8.5 we installed 12.1.0 instant client on that machine. Does this cause the problem ???
This is the bug in Oracle Client 12c. It truncates not only strings but numbers as well. Reverting to client 11g fixed the problem.
newParam = new OracleParameter("Response",OracleType.VarChar);
Use **OracleType.Char** instead of **OracleType.VarChar**
newParam = new OracleParameter("Response", OracleType.Char);
IT works in my case.
I am using Oracle 11g and VS12 ,truncating output parameter in dot net code,
I even changed the output parameter as integer in Stored procedure.
When I changed to Char instead of Varchar as below in dot net it works fine.
db.AddParameter(dbCommand, "p_out_result", OracleType.Char, 300,
ParameterDirection.Output, true, 100, 3, null, DataRowVersion.Default, null);
We had the same experiance as you did when migrating to Oracle 12c database (on Oracle servers) and to a Windows 2012 for webservices (IIS 8).
Varchar2 string, returned from a stored procedure, was truncated almost always at half - no mather what setting we used.
Replacing the Oracle client 12 64-bit with client 12 32-bit did NOT solve the problem.
The solution of Vick Rom solved our problem. Oracle client 11 was installed on a 64bit Windows 2012 server.
We are planning to keep it that way until Oracle client 12 won't be fixed.
I have the same problem, But I found a work around while you still using oracle 12 and 11 installed on the same machine. below is what I did.
1- Oracle 11 was already installed in my case so I keep it there.
2- I installed oracle client 12c. copied the TNS names after the installation.
3- Installed oracle 11 (win32_11gR2_client). copied the TNS names files.
4- restarted the server.
Everything worked very well. the system using oracle client managed driver worked and the old system using system.data.oracleclient worked as well.
Thank you
I had the same issue, but chose a different approach due to my client's policy to stick with latest Oracle Client. In this case, I have to make my code work with Oracle 12c client on Windows 2012 R2 [IIS 8.5] server.
Instead of returning a varchar2 as output paramter, I modified the SP to return a SYS_REFCURSOR with one row/column in it.
Ex:
PROCEDURE get_access_sp (p_mode IN VARCHAR2, p_out OUT SYS_REFCURSOR)
IS
BEGIN
/*Body of SP*/
v_out := 'TEST_SP_RETURN_PARAM';
--RETURN
OPEN p_out FOR SELECT v_out po FROM DUAL;
EXCEPTION
WHEN OTHERS
THEN
OPEN p_out FOR SELECT 'N' po FROM DUAL;
END get_access_sp;
Related
i am trying to connect to an informix database in my web application and retrieve the data based on an item code entered by the user and store it in a datatable later i want to take the data from the datatable and display it on my textboxes for the item selected. its an odbc connection DRIVER={IBM INFORMIX ODBC DRIVER} in my connection string
if (DropDownList4.Text == "***.**.**.**" || DropDownList4.Text == "***.**.**.**" || DropDownList4.Text == "***.**.**.**")
{
//string abilene = ConfigurationManager.ConnectionStrings["Abeliene"].ConnectionString.ToString();
IfxConnection conn = new IfxConnection("User Id=****;Password=****;" +"Host=abkrisc1;Server=abkrisc1;" +"Service=1719;DB=circa119;");
DataTable Abilene = new DataTable();
Abilene.Columns.Add("item");
Abilene.Columns.Add("desc");
Abilene.Columns.Add("upc");
Abilene.Columns.Add("itemupc");
Abilene.Columns.Add("ctyp");
Abilene.Columns.Add("citg");
Abilene.Columns.Add("best");
Abilene.Columns.Add("disp");
Abilene.Columns.Add("mold");
Abilene.Columns.Add("csel");
IfxCommand cmd;
cmd = new IfxCommand("Select t_item,t_idsc,t_upct,t_item_upc,t_ctyp,t_citg,t_best,t_disp,t_mold,t_csel from tsckcm907 where t_item = #item'");
conn.Open();
cmd.Parameters.Add("#item", IfxType.VarChar).Value = TxtItem.Text;
try
{
IfxDataReader myreader = cmd.ExecuteReader();
Abilene.Load(myreader);
Response.Write(Abilene.Columns);
con = true;
}
catch (Exception ex)
{
throw ex;
con = false;
}
if (con == true)
{
while (Abilene.Rows.Count > 0)
{
TxtItem.Text = Abilene.Rows[0]["item"].ToString();
lbldesc.Text = Abilene.Rows[1]["desc"].ToString();
}
}
The error i get when i debugged was at conn.open() -> ERROR [HY000] [Informix .NET provider][Informix]Server abkrisc1 is not listed as a dbserver name in sqlhosts.
i have done a similar scenario with sql database, but informix i have never worked with. Please if anyone could help me with this code that would be awesome, even this code that i used was found from ibm website.
Check your informix server configuration (the problem might be in your sqlhosts file, as the error states), it should contain server with the name abkrisc1, listening at port 1719.
If that's ok, then check your DSN configuration (this may vary depending on your operating system - check out this page for details).
Documentation in internet and the error message are misleading.
I had the same error and meanwhile I found out how to solve it.
When you install the Informix Client SDK for Windows and use the ODBC driver for Informix (with or without .NET) you must pass the following parameters:
Host
Server
Service or Port
Protocol
User ID
Password
All these parameters are mandatory. The database is optional.
In your connection string the protocol is missing. In the case that any parameter is missing the OBDC driver searches the server in the registry under
32 bit driver:
HKLM\Software\Wow6432Node\Informix\SQLHOSTS\Servername
64 bit driver:
HKLM\Software\Informix\SQLHOSTS\Servername
If the server is not listed there you get the error "Server XYZ is not listed as a dbserver name in sqlhosts."
Please note that only Linux uses an sqlhosts file. On Windows the same data is stored in the registry instead.
You do NOT need to create a sqlhosts file although the error message and the documentation and several webpages make you think that.
You do NOT need to use the IBM tool SetNet32 to generate entries for your server.
You just have to pass ALL mandatory parameters to the ODBC driver and the error is gone.
It is really a pitty that IBM is not able to give a more intelligent error message.
I have build an Report application using C# and Crystal Report
I build program with Formula Selection to Change Query when User need to Filter the report.
The program build in Windows 7.
In the windows 7 program is running well as I needed, data and anything is shown like I needed.
But I need to run in Windows XP.
I try to filter date into to day.
The problem is on CrystalReportViewer RefreshReport();
If I don't use that function data on report doesn't refresh, but if I use that function The connection failed to logon
Here is the code:
skr = DateTime.Now.ToString("yyyy/MM/dd");
dp = new DailyParking();
dp.SetDatabaseLogon("user", "passwd", "host", "dbname");
repotviewer.ReportSource = dp;
repotviewer.SelectionFormula = "Date({transaksi1.masuk})=Date('" +skr+ "') ";
repotviewer.RefreshReport();
repotviewer.Refresh();
The answer is, Install the Another MySql Connector which compatible in XP, after that create the connection in MyODBC.
Change The code like here:
skr = DateTime.Now.ToString("yyyy/MM/dd");
dp = new DailyParking();
dp.SetDatabaseLogon("user", "passwd", "host", "dbname");
dp.RecordSelectionFormula = "Date({transaksi1.masuk}) = Date('" + skr + "') ";
repotviewer.ReportSource = dp;
repotviewer.Refresh();
Change the MySQL.Data reference with new MySQL connector same with installed in XP and Rebuil Program.
I have a Excel-Sheet connected with a Oracle Database with MSDAORA.
Connection String in Excel is
Provider=MSDAORA.1;User ID=xxx;Password=xxx;Data Source=yyy.com
CommandType is Tabledirect and CommandText is "zzzzzz"."ZZZZZZZZ"
Integrated Security is Windows Authentication
So i createt a small Test App for connecting me to the Oracle-DB with C#.
It seems the Connection String is the same, but its not working.
Error Message : OLEDB Exception - Error executing OLEDB Procedur
Using VS2012 / NET3.5 /
tbConnectionString.Text = #"Provider=MSDAORA.1;User ID=xxx;Password=xxx;Data Source=yyy.com";
tbCommandText.Text = #"""zzzzzzz"".""ZZZZZZZZZZ""";
myOleDbConnection = new OleDbConnection(tbConnectionString.Text);
OleDbCommand myOleDbCommand = myOleDbConnection.CreateCommand();
myOleDbCommand.CommandType = CommandType.TableDirect;
myOleDbCommand.CommandText = tbCommandText.Text;
myOleDbConnection.Open();
THX
Is an issue of Operating system and VS version.
Because I faced same problem before when using Win 7.
After diagnosing the issue , we find solution of Oracle.DataAccess.
Check out the support of msdaora.1.
I Have a stored procedure:
CREATE OR REPLACE PROCEDURE UpdateFileMapping(field in number, original_Field_Names in DBMS_SQL.varChar2_table, mapped_Field_Ids in DBMS_SQL.number_table)
IS
C NUMBER := DBMS_SQL.OPEN_CURSOR;
N NUMBER;
BEGIN
DBMS_SQL.PARSE(C,'INSERT INTO input_file_mapping VALUES(input_file_mapping_id.NextVal, 3, field, :fieldName, :mappedFieldId)', DBMS_SQL.NATIVE);
DBMS_SQL.BIND_ARRAY(C,':fieldName', original_Field_Names);
DBMS_SQL.BIND_ARRAY(C,':mappedFieldId', mapped_Field_Ids);
N := DBMS_SQL.EXECUTE(C);
DBMS_SQL.CLOSE_CURSOR(C);
END;
How to call such procedure which takes as input of DBMS_SQL.varChar2_table type from C#?
You need to include the proper ODP.NET provider for your system and then use OracleConnection and OracleCommand types to create a connection and execute the stored procedure. ODP.NET comes with extensive documentation and many examples.
Try:
void ExecOracleStoredProcedure(int field, string[] original_Field_Names, int[] mapped_Field_Ids)
{
using (OracleConnection connection = new OracleConnection(connectionString))
using (OracleCommand command = connection.CreateCommand())
{
command.CommandText = "UpdateFileMapping";
command.CommandType = CommandType.StoredProcedure;
command.Parameters.AddWithValue(":field").Value = field;
command.Parameters.AddWithValue(":original_Field_Names").Value = original_Field_Names;
command.Parameters.AddWithValue(":mapped_Field_Ids").Value = mapped_Field_Ids;
connection.Open();
command.ExecuteNonQuery();
}
}
Looks like Enterprise Library from MS still support Oracle Database
For the Data Access Application Block, the following is also required:
A database server running a database that is supported by a .NET Framework 3.5 with Service Pack 1 or .NET Framework 4.0 data provider. This includes SQL Server® 2000 or later, SQL Server 2005 Compact Edition, and Oracle 9i or later. The database server can also run a database that is supported by the .NET Framework 3.5 with Service Pack 1 or the .NET Framework 4.0 data providers for OLE DB or ODBC.
create or replace procedure UpdateFileMapping(m in Number,y in DBMS_SQL.varChar2_table,z in DBMS_SQL.number_table)
IS
C NUMBER;
N NUMBER;
BEGIN
C := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE(C,'INSERT INTO tablename VALUES(:x ,:fieldName,:mappedFieldId)',DBMS_SQL.NATIVE);
DBMS_SQL.BIND_ARRAY(C,':fieldName',original_Field_Names);
DBMS_SQL.BIND_ARRAY(C,':mappedFieldId',mapped_Field_Ids);
DBMS_SQL.BIND_VARIABLE(C,':x',file_Id);
N := DBMS_SQL.EXECUTE(C);
DBMS_SQL.CLOSE_CURSOR(C);
END;
For more information:
http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28419/d_sql.htm
My development machine is running Windows 7 Enterprise, 64-bit version. I am using Visual Studio 2010 Release Candidate. I am connecting to an Oracle 11g Enterprise server version 11.1.0.7.0. I had a difficult time locating Oracle client software that is made for 64-bit Windows systems and eventually landed here to download what I assume is the proper client connectivity software. I added a reference to "Oracle.DataAccess" which is version 2.111.6.0 (Runtime Version is v2.0.50727). I am targeting .NET CLR version 4.0 since all properties of my VS Solution are defaults and this is 2010 RC. I was then able to write a console application in C# that established connectivity, executed a SELECT statement, and properly returned data when the table in question does NOT contain a spatial column. My problem is that this no longer works when the table I query has a column of type SDO_GEOMETRY in it.
Below is the simple console application I am trying to run that reproduces the problem. When the code gets to the line with the "ExecuteReader" command, an exception is raised and the message is "Unsupported column datatype".
using System;
using System.Data;
using Oracle.DataAccess.Client;
namespace ConsoleTestOracle
{
class Program
{
static void Main(string[] args)
{
string oradb = string.Format("Data Source={0};User Id={1};Password={2};",
"hostname/servicename", "login", "password");
try
{
using (OracleConnection conn = new OracleConnection(oradb))
{
conn.Open();
OracleCommand cmd = new OracleCommand();
cmd.Connection = conn;
cmd.CommandText = "select * from SDO_8307_2D_POINTS";
cmd.CommandType = CommandType.Text;
OracleDataReader dr = cmd.ExecuteReader();
}
}
catch (Exception e)
{
string error = e.Message;
}
}
}
}
The fact that this code works when used against a table that does not contain a spatial column of type SDO_GEOMETRY makes me think I have my windows 7 machine properly configured so I am surprised that I get this exception when the table contains different kinds of columns. I don't know if there is some configuration on my machine or the Oracle machine that needs to be done, or if the Oracle client software I have installed is wrong, or old and needs to be updated.
Here is the SQL I used to create the table, populate it with some rows containing points in the spatial column, etc. if you want to try to reproduce this exactly.
SQL Create Commands:
create table SDO_8307_2D_Points (ObjectID number(38) not null unique, TestID number, shape SDO_GEOMETRY);
Insert into SDO_8307_2D_Points values (1, 1, SDO_GEOMETRY(2001, 8307, null, SDO_ELEM_INFO_ARRAY(1, 1, 1), SDO_ORDINATE_ARRAY(10.0, 10.0)));
Insert into SDO_8307_2D_Points values (2, 2, SDO_GEOMETRY(2001, 8307, null, SDO_ELEM_INFO_ARRAY(1, 1, 1), SDO_ORDINATE_ARRAY(10.0, 20.0)));
insert into user_sdo_geom_metadata values ('SDO_8307_2D_Points', 'SHAPE', SDO_DIM_ARRAY(SDO_DIM_ELEMENT('Lat', -180, 180, 0.05), SDO_DIM_ELEMENT('Long', -90, 90, 0.05)), 8307);
create index SDO_8307_2D_Point_indx on SDO_8307_2D_Points(shape) indextype is mdsys.spatial_index PARAMETERS ('sdo_indx_dims=2' );
Any advice or insights would be greatly appreciated. Thank you.
Here is a link to a post with a sample app using C# and ODP.net to access spatial types.
http://www.orafaq.com/forum/mv/msg/27794/296419/0/#msg_296419
There is also a sample here about using XML to select the spatial types:
http://forums.oracle.com/forums/thread.jspa?threadID=241076