Distribuirane i objektne baze podataka - Ncd.matf.bg.ac.rs
Distribuirane i objektne baze podataka - Ncd.matf.bg.ac.rs
Distribuirane i objektne baze podataka - Ncd.matf.bg.ac.rs
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INSERT INTO GERMAN_SALES_02SELECT PRODUCT_ITEM, US_DOLLAR_E (SUM (TOTAL))FROM GERMAN_SALESWHERE YEAR = 2002GROUP BY PRODUCT_ITEMINSERT INTO CANADIAN_SALES_02SELECT PRODUCT_ITEM, US_DOLLAR_C (SUM (TOTAL))FROM CANADIAN_SALESWHERE YEAR = 2002GROUP BY PRODUCT_ITEMEksplicitno se konvertuje suma u kanadskim dolarima i eurima u US dolare,obzirom da se vrednosti različitih distinct tipova ne mogu direktnododeljivati.Ne može da se koristi sintaksa cast operatora, jer distinct tipovi mogu nataj način jedino da se kastuju u svoje izvorne tipove.30decembar 2010, Biljana Stojanović