SQL

DISTINCT [distinct]

• 重複行を除外
  • http://www.dbonline.jp/mysql/select/index13.html

SELECT FOR UPDATE

• SELECT ... FOR UPDATEとロックの挙動
  • http://walf443.hatenablog.com/entry/20130829/1377788440

SQL Injection

SEQUEL (SQLの前身)

• SEQUEL: A STRUCIURED ~NGLISH QUERY LANGUAGE
  • http://www.almaden.ibm.com/cs/people/chamberlin/sequel-1974.pdf