setNString(int parameterIndex, String value)
Syntax:
void setNString(int parameterIndex,
                String value)
                throws SQLException
                                        Description:
Sets the designated parameter to the given String object. The driver converts this to an SQL NCHAR or NVARCHAR or LONGNVARCHAR value (depending on the argument's size relative to the driver's limits on NVARCHAR values) when it sends it to the database.
Parameters:
parameterIndex
of the first parameter is 1, the second is 2, ...
value
the parameter value
Throws:
SQLException - if a database access error occurs, parameterIndex is less than 1 or greater than the number of parameters, or the prepared statement has been closed
Reference:
For more information, reference JDBC documentation for: PreparedStatement.setNString(int, String)