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
Roma Army 45.0 amet consetetur ut diam
Olympia 81.0 justo kasd est kasd
Neapolis 125.0 dolore rebum dolore At
Roma 171.0 diam et invidunt ipsum
Carthago 343.0 invidunt dolores ipsum voluptua
Roma 587.0 amet At sit et
Olympia 671.0 Stet amet et accusam
Carthago Arts 15.0 sit rebum duo justo
Olympia 345.0 ipsum invidunt takimata eirmod
Carthago 464.0 no diam sed tempor
12 items found, displaying 11 to 12.[First/Prev] 1, 2 [Next/Last]
CITY PROJECT HOURS TASK
Carthago Gladiators 447.0 ipsum sea sadipscing diam
Neapolis Taxes 771.0 clita At sit sed

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.