code: public void updateDate(String columnLabel, Date x) throws SQLException {
          updateDate(findColumn(columnLabel), x);
      }
docs: <!-- start generic documentation -->
  Updates the designated column with a <code>java.sql.Date</code> value.
  The updater methods are used to update column values in the
  current row or the insert row.  The updater methods do not
  update the underlying database; instead the <code>updateRow</code> or
  <code>insertRow</code> methods are called to update the database.
  <!-- end generic documentation -->
  
  <!-- start release-specific documentation -->
  <div class="ReleaseSpecificDocumentation">
  <h3>HSQLDB-Specific Information:</h3> <p>
  
  HSQLDB supports this feature. <p>
  </div>
  <!-- end release-specific documentation -->
  
  @param columnLabel the label for the column specified with the SQL AS clause.  If the SQL AS clause was not specified, then the label is the name of the column
  @param x the new column value
  @exception SQLException if a database access error occurs,
  the result set concurrency is <code>CONCUR_READ_ONLY</code>
  or this method is called on a closed result set
  @exception SQLFeatureNotSupportedException if the JDBC driver does not support
  this method
  @since JDK 1.2 (JDK 1.1.x developers: read the overview for
  JDBCResultSet)