Two tables working together in the same page with independent paging-sorting

20 items found, displaying 1 to 10.[First/Prev] 1, 2 [Next/Last]
CITY PROJECT HOURS TASK
Neapolis Army 51.0 labore vero accusam elitr
Carthago 268.0 accusam diam consetetur justo
Neapolis 459.0 sanctus sea diam sadipscing
Carthago 479.0 ut eos accusam At
Olympia 831.0 amet nonumy vero justo
953.0 et rebum elitr diam
Arts 22.0 consetetur voluptua takimata erat
Carthago 319.0 clita dolores diam erat
417.0 clita rebum voluptua tempor
Roma 698.0 invidunt clita takimata Stet
12 items found, displaying 1 to 10.[First/Prev] 1, 2 [Next/Last]
CITY PROJECT HOURS TASK
Roma Army 152.0 Lorem no ea dolor
Neapolis 322.0 elitr nonumy accusam vero
Carthago 747.0 consetetur nonumy amet labore
Olympia 900.0 invidunt justo sanctus ut
Neapolis Arts 524.0 voluptua dolor sanctus labore
954.0 sed sed sed dolores
Gladiators 193.0 ipsum diam et diam
Roma 763.0 diam kasd tempor invidunt
Olympia 799.0 vero diam amet ut
Carthago 863.0 erat Lorem takimata ut

Do you need to put more than one <display:table> in the same page, with independent pagination and sorting?

No problem: parameter in pagination, sorting and exporting are encoded to be processed only by the source table. The only requirement is to provide a different id attribute for the table. If you click on sorting or pagination links in one of the previous tables the other one doesn't get affected by that.