OracleParameter.DbType Property

Gets or sets the DbType of the parameter.

Namespace: System.Data.OracleClient
Assembly: System.Data.OracleClient (in

Public Overrides Property DbType As DbType
Dim instance As OracleParameter
Dim value As DbType

value = instance.DbType

instance.DbType = value
/** @property */
public DbType get_DbType ()

/** @property */
public void set_DbType (DbType value)

public override function get DbType () : DbType

public override function set DbType (value : DbType)

Property Value

One of the DbType values. The default is AnsiString.

Exception typeCondition


The property was not set to a valid DbType.

The OracleType and DbType are linked. Therefore, setting the DbType changes the OracleType to a supporting OracleType.

The DbType, OracleType, and .Data.OracleClient.OracleParameter.Size properties of a parameter can be inferred by setting .Data.OracleClient.OracleParameter.Value. Therefore, you are not required to specify them. However, they are not exposed in OracleParameter property settings. For example, if the size of the parameter has been inferred, .Data.OracleClient.OracleParameter.Size does not contain inferred value after statement execution. For String data types the default is AnsiString.

For a list of the supported data types, see the appropriate OracleType member. For more information, see Using Parameters with a DataAdapter.

The following example creates an OracleParameter and sets some of its properties.

Public Sub CreateOracleDbParameter()
    Dim parameter As New OracleParameter()
    parameter.ParameterName = "pDName"
    parameter.DbType = DbType.String
    parameter.Value = "ENGINEERING"
    parameter.SourceColumn = "DName"
End Sub 

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1

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