When logged into NXT there is no option for Open Database View I don't see button for Database View Database View button is missing
If the option for Database View is not visible, zoom out in the browser until it is visible again. You may also see what looks like a stack of coins. If you click on the stack of coins, the option for Database view should be listed.
Ctrl-Minus Sign (-) will zoom out and allow the fill screen to be viewed.