Numeric or Value Error 6502

Question

I have a stored procedure that starts out like so:
PROCEDURE test_proc(param1 IN VARCHAR2, param2 IN VARCHAR2, param3 OUT
SYS_REFCURSOR) IS
v_var varchar2(5);
BEGIN
SELECT * FROM. . .
The procedure tests fine in SQL Plus and PL/SQL Developer. When calling from
ODP.NET like so. . .
OracleCommand cmd = new OracleCommand("test_proc", <connection>);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("param1", "somevalue");
cmd.Parameters.Add("param2", "XX");
cmd.Parameters.Add("param3", OracleDbType.RefCursor,
ParameterDirection.Output);
DataSet ds = new DataSet();
OracleDataAdapter da = new OracleDataAdapter(cmd);
con.Open();
da.fill(ds);
con.Close();
. . .the procedure executes as expected. If I change the value of
param2 to "XXX" or any value three chars long I get the "ORA-06502:
Numeric or Value Error at Line 1" error.
Here's the kicker: I never constrain the size of that parameter or try to assign it to a variable! Why then should there be a numeric/value error?
Anyone have any ideas?
Thanks.

Answer 1

Hi,
Are you pointing to a 9206 database by chance? There was a known database bug that could cause that, and would be resolved by patching your database to 9208.
Cheers,
Greg