Help with Input/Output Parameter Size using OLE DB Provider

Question

I am using the OLE DB Provider for 9i in an Active Server Page to call a stored procedure in a 9i database. I pass have an input/output parameter (adVarChar with adSize=30) in which I pass a two digit number in, and expect to get a character value greater than 2 characters in return. However, when I execute the stored procedure call, it appears the value being returned in the parameter is being truncated to the size of the value I passed in (2 characters). Is there a way I can insure the parameter will return the entire length of the result regardless of the length of the input value?

Answer 1

cmd.Parameters.Add("retstatus", OracleDbType.Varchar2, 200, ParameterDirection.InputOutput); It seems to me that you're trying to use an OracleParameter constructor with parameter name, parameter type, parameter SIZE, and parameter direction. But OracleParameter class does not have any such constructor. Therefore, your test tries to use another constructor incorrectly.
OracleParameter has two constructors with four parameter ...
public OracleParameter(string parameterName, OracleDbType type, object obj, ParameterDirection direction)
public OracleParameter(string parameterName, OracleDbType type, int size, string srcColumn)
... and none of these matches your constructor. One way to solve this problem is to use appropriate constructor or OracleParameter properties.