Puts this SQLServerConnection object in read-only mode as a hint to the JDBC driver to enable database optimizations.
Note: 
      This method is not currently supported by the Microsoft SQL Server 2005 JDBC Driver.
    
  public void setReadOnly(boolean readOnly)
Parameters
readOnly
True if the connection is to be read-only. Otherwise, false.
Exceptions
Remarks
This setReadOnly method is specified by the setReadOnly method in the java.sql.Connection interface.