PostgreSQL 仮想テーブル

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SQL

      SELECT 10 as age
UNION SELECT 20
UNION SELECT 30
UNION SELECT 40
UNION SELECT 50
UNION SELECT 60
UNION SELECT 70
UNION SELECT 80
ORDER BY age;

結果

 age
-----
  10
  20
  30
  40
  50
  60
  70
  80