"sasha" <[EMAIL PROTECTED]> wrote:
>
> SELECT I.*
> FROM "RssFeedItems" I
> LEFT JOIN (SELECT MIN(RDB$DB_KEY) AS ENCLOSURE_KEY, "FeedItemId" FROM 
> "RssFeedItemEnclosures" GROUP BY "FeedItemId")
>  AS EN ON EN."FeedItemId" = I."Id"
> LEFT JOIN "RssFeedItemEnclosures" E ON E.RDB$DB_KEY = EN.ENCLOSURE_KEY
> JOIN "RssCacheElements" RCE ON I."FeedId" = RCE."RssFeedId"
> WHERE RCE."FeedDefinitionId" = 1540
>
> åÓÌÉ ÖÅ ÐÏÓÔÁ×ÉÔØ INNER JOIN ÄÏ LEFT, ÔÏ ×Ó£ ÎÁÞÉÎÁÅÔ ÌÅÔÁÔØ.

óÔÁÒÁÑ ÉÚ×ÅÓÔÎÁÑ ÇÒÁÂÌÑ. ðÉÛÉ ÔÁÂÌÉÃÙ × ÐÏÒÑÄËÅ Ó×ÑÚÙ×ÁÎÉÑ, Á ÎÅ ËÁË 
ÐÏÐÁÌÏ - ÓÜËÏÎÏÍÉÛØ ÎÅÒ×Ù. ðÏÓÌÅÄÎÉÊ INNER Õ ÔÅÂÑ Ó E ÎÉËÁË ÎÅ Ó×ÑÚÁÎ, ÔÁË 
ÎÁÆÉÇÁ ÅÇÏ ÐÏÓÌÅ ÓÔÁ×ÉÔØ?

> üÔÏÔ ÁÓÐÅËÔ Ñ ÎÅ ÏÞÅÎØ ÐÏÎÉÍÁÀ. ñ ÏÖÉÄÁÌ ÞÔÏ ÏÔ ÐÅÒÅÍÅÎÙ
> ÍÅÓÔ ÄÖÏÊÎÏ× ÐÌÁÎ ÎÅ ÄÏÌÖÅÎ ÉÚÍÅÎÉÔÓÑ.

îÅ ÄÏÌÖÅÎ. îÏ ×ÓÅÇÄÁ ÍÅÎÑÌÓÑ É ÄÏ ÓÉÈ ÐÏÒ ÍÅÎÑÅÔÓÑ.

> ôÅÐÅÒØ ×ÅÒΣÍÓÑ Ë ÚÁÐÒÏÓÕ Ó ÐÒÅÄÓÔÁ×ÌÅÎÉÅÍ.

á ×ÏÔ ÔÕÔ Ñ ÂÙ ×ÚÇÌÑÎÕÌ ÎÁ ÂÁÚÕ.


--
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