====== SQL ======

===== Operace s relacemi =====

  * [[https://www.postgresql.org/docs/9.1/static/sql-createtable.html|vytvoření tabulky]]

<code sql>
CREATE TABLE XXXX IF NOT EXISTS {
  id    integer,
  txt   varchar[256],
  PRIMARY KEY(id)
};
</code>
===== Operace s daty =====