public void updateObject(String columnName, Object x, int scale) throws SQLException {
        updateObject(findColumn(columnName), x, scale);
    }
Updates the designated column with an <code>Object</code> value.
The <code>updateXXX</code> methods are used to update column values in the
current row or the insert row.  The <code>updateXXX</code> methods do not
update the underlying database; instead the <code>updateRow</code> or
<code>insertRow</code> methods are called to update the database.

@param columnName the name of the column
@param x the new column value
@param scale for <code>java.sql.Types.DECIMAL</code>
 or <code>java.sql.Types.NUMERIC</code> types,
 this is the number of digits after the decimal point.  For all other
 types this value will be ignored.
@throws SQLException if a database access error occurs
src/main/java/org/replicadb/rowset/sun/rowset/JdbcRowSetImpl.java