Passing a long string from Vb to stored proc

Question

Hi,
I am passing a long string from Vb to this stored proc ..
defn:
Create Or Replace Procedure saveTaxFormInDB(intFormUID IN number,
intCLUID IN number,
PDFdata IN varchar2,
Status IN OUT Varchar2) AS
Problem lies with the string pdfdata. I am sending it from VB as:
Set cmdParamStr = cmdAdoCmd.CreateParameter("Data", adVarChar,
adParamInput, 32767, strData)
I have checked the parameters in VB while sending and I have the
correct string argument to be passed to "PDFData", But i am not
sure if it is getting the value correctly.
Because I know that the code is raising exception while
accessing PDFData. (eg. in places like insert ..(pdfdata) and
length(pdfdata)...)
Please advise how i can solve this problem.
Please Note that the string is not VERY large. I do not need to
use LOBS in any way. the string is definitely within the limits
of varchar2(which i think is 4000 chars.. correct me if i am
wrong).
Many thanks

Answer 1

what is the backend MS SQl server or Oracle.??
If it is MS SQLSERVER, then
1.Create a SqlCommand object with the parameters as the name of the stored procedure that is to be executed and the connection object con to which the command is to be sent for execution.
SqlCommand command = new SqlCommand("Name of StoredProcedure",con);
2.Change the command objects CommandType property to stored procedure.
command.CommandType = CommandType.StoredProcedure;
3.Add the parameters to the command object using the Parameters collection and the SqlParameter class.
command.Parameters.Add(new SqlParameter("@parametername",SqlDbType.Int,0,"Filedname"));
4.Specify the values of the parameters using the Value property of the parameters
command.Parameters[0].Value=4;
command.Parameters[1].Value="ABC";
If it is oracle,
OracleConnection con = new OracleConnection("uid=;pwd=");
try
con.Open();
OracleCommand spcmd = new OracleCommand("Name of StoredProcedure");
spcmd.CommandType = CommandType.StoredProcedure;
spcmd.Connection = con;
spcmd.Parameters.Add("empid", OracleType.Number, 5).Value = txtEmpid.Text;
spcmd.Parameters.Add("sal", OracleType.Number, 5).Value = txtSal.Text;
spcmd.ExecuteNonQuery();
}