text: -- DBSequence
  -- @ :	pooling protein database sequences ...
  DROP TABLE IF EXISTS mzIdentML_DBsequence;
  CREATE TABLE mzIdentML_DBsequence
  (KEY (`index`), KEY(entry))
    ENGINE=MyISAM
      SELECT
        min(pr.index) as `index`,
        pr.entry,
        pr.accession,
        pr.description,
        pr.sequence,
        length(pr.sequence) as seqlength
      FROM protein pr
  -- JOIN finalquant fq USING (entry)
      GROUP BY pr.entry
      ORDER BY pr.entry;
  -- @ :	retrieving protein database sequences ...
  SELECT * FROM mzIdentML_DBsequence;