GetOracleString
This method returns an OracleString structure of the specified column. 
                  
Declaration
// C#
public OracleString GetOracleString(int index);Parameters
- 
                        indexThe zero-based column index. 
Return Value
The OracleString value of the column.
                  
Exceptions
InvalidOperationException - The connection is closed, the reader is closed, Read() has not been called, or all rows have been read.
                  
IndexOutOfRangeException - The column index is invalid.
                  
InvalidCastException - The accessor method is invalid for this column type or the column value is NULL.
                  
Remarks
If the column is an Oracle REF column, the string returned is a hexadecimal value that represents the REF in the database.