IsDBNull methods indicate whether or not the specified attribute being retrieved is NULL.

Overload List for ODP.NET, Unmanaged Driver:

• IsDBNull(OracleConnection, IntPtr, string)

  This method indicates whether or not the attribute being retrieved, specified by OracleConnection, pointer, and attribute name, is NULL.

• IsDBNull(OracleConnection, IntPtr, int)

  This method indicates whether or not the attribute being retrieved, specified by OracleConnection, pointer, and attribute index, is NULL.

Overload List for ODP.NET, Managed Driver and ODP.NET Core :

• IsDBNull(OracleConnection, object, string)

  This method indicates whether or not the attribute being retrieved, specified by OracleConnection, UDT, and attribute name, is NULL.

• IsDBNull(OracleConnection, object, int)

  This method indicates whether or not the attribute being retrieved, specified by OracleConnection, UDT, and attribute index, is NULL.