Minimumsindekser ::
CREATE INDEX a0 ON a (col4, col5) ;
CREATE INDEX a1 ON a (col3) ;
CREATE INDEX a2 ON a (col4) ;
CREATE INDEX b1 ON b (col1) ;
CREATE INDEX b2 ON b (col3) ;
CREATE INDEX c1 ON c (col1) ;
CREATE INDEX d1 ON d (col2) ;
Du kan også oprette,
CREATE INDEX e1 ON e (col1) ;
CREATE INDEX a4 ON a (col1) ;