Heterojen SQL Kullanımı

//Delphi FAQs and TIs
//Birden fazla Alias arasında da SQL yazılabilir.
{The SQL syntax should be formatted as follows: a double
quote, a colon, a real alias name, a colon, the table name,
and a double quote. See example below.
Leave the DatabaseName property of the TQuery blank, unless
the alias is local. For example, specifying DBDEMOS in the
Query's DatabaseName property will work, but using IBLOCAL
will cause a general SQL error.}
SELECT A.ITEMNO, B.VENDORNO
FROM "BDEMOS:ITEMS" A, ":IBLOCAL:VENDORS" B
WHERE A.VENDORNO = B.VENDORNO