On 15/03/06, Ondřej Fafejta KYBERIE <[EMAIL PROTECTED]> wrote:

> 2. EQL dotaz typu:
> SELECT res FROM Osoba res LEFT JOIN Zamestnanec zam WHERE res.id=zam.id
> AND zam IS NULL
> To ovšem nefunguje.

Mozna Vam uplne neporadim, ponevadz nevim presne jak funguje EQL, ale
v SQL byste spravne mel JOIN-ovaci podminku hodit do LEFT JOIN ON
namisto WHERE, pak by to melo fungovat.

Tedy spis:

SELECT res FROM Osoba res LEFT JOIN Zamestnanec zam ON  res.id=zam.id
  WHERE zam IS NULL

Pavel

Odpovedet emailem