OracleParameter Class

An OracleParameter object represents a parameter for an OracleCommand or a DataSet column.

Class Inheritance

System.Object

System.MarshalByRefObject

System.Data.Common.DbParameter

Oracle.DataAccess.Client.OracleParameter

Declaration

// C#
public sealed class OracleParameter : DbParameter, IDisposable, ICloneable

Requirements

Provider	ODP.NET, Unmanaged Driver	ODP.NET, Managed Driver	ODP.NET Core
Assembly	`Oracle.DataAccess.dll`	`Oracle.ManagedDataAccess.dll`	`Oracle.ManagedDataAccess.dll`
Namespace	`Oracle.DataAccess.Client`	`Oracle.ManagedDataAccess.Client`	`Oracle.ManagedDataAccess.Client`
.NET Framework	4.5, 4.6, 4.7, 4.8	4.5, 4.6, 4.7, 4.8	4.6.1 or higher
.NET Core	-	-	2.1 or higher

Thread Safety

All public static methods are thread-safe, although instance methods do not guarantee thread safety.

Exceptions

ArgumentException - The type binding is invalid.

Example

// C#
 
using System;
using System.Data;
using Oracle.DataAccess.Client; 
using Oracle.DataAccess.Types;
 
class OracleParameterSample
{
  static void Main()
  {
    string constr = "User Id=scott;Password=tiger;Data Source=oracle";
    OracleConnection con = new OracleConnection(constr);
    con.Open();
 
    OracleParameter[] prm = new OracleParameter[3];
 
    // Create OracleParameter objects through OracleParameterCollection
    OracleCommand cmd = con.CreateCommand();
 
    cmd.CommandText = "select max(empno) from emp";
    int maxno = int.Parse(cmd.ExecuteScalar().ToString());
 
    prm[0] = cmd.Parameters.Add("paramEmpno", OracleDbType.Decimal, 
      maxno + 10, ParameterDirection.Input);
    prm[1] = cmd.Parameters.Add("paramEname", OracleDbType.Varchar2, 
      "Client", ParameterDirection.Input);
    prm[2] = cmd.Parameters.Add("paramDeptNo", OracleDbType.Decimal, 
      10, ParameterDirection.Input);
    cmd.CommandText = 
      "insert into emp(empno, ename, deptno) values(:1, :2, :3)";
    cmd.ExecuteNonQuery();
 
    Console.WriteLine("Record for employee id {0} has been inserted.", 
                      maxno + 10);
  }
}