connecting web database in android

Same as normal.
(1) create table
(2) populate with data
(3) make php page to access/display data
(4) connect phone to wifi network in your house
(5) browse to page you created in step (3)

When I do it, I make my phone a wifi hotspot. I then connect the laptop to that network. I then browse to the address on my phone. In my case (your network values will likely vary) it is
192.168.53.1/enhzflep

So essentially, android has nothing to do with the question. It's just a mattter of sql, php and networking.