public int GetSerialCount(string custCode, string locCode, string itemCode) { var ctx = new AccellosContext(); string sql = @"SELECT COUNT(serial) cnt FROM l_ryder_cisco_sncyc_cnt WHERE cust_code = :1 AND loc_code = :2 AND item_code = :3"; IList <OracleParameter> parameters = new List <OracleParameter> { new OracleParameter(":1", OracleDbType.Varchar2, custCode, ParameterDirection.Input), new OracleParameter(":2", OracleDbType.Varchar2, locCode, ParameterDirection.Input), new OracleParameter(":3", OracleDbType.Varchar2, itemCode, ParameterDirection.Input) }; using (var cn = (OracleConnection)ctx.DbConnection) { return(OracleManager.ExecuteScalar(cn, sql, parameters)); } }