I couldn't quite tell what language you are using, but regardless, you'll need to create a connection, command and execute the command.  Once you can do this, we can add to the process to get what you want. 

It will be something similar to this:

Dimension and set the propertites of your conn object
Dimension and set the properties of your command object
Get a reference to the datatable returned
Do your stuff

There should be plenty of examples of getting a datatable/dataset and looping to do your stuff.  Post your code and we can go from there!

Hello!

I am trying to connect to my database that contain a: Username / Password

The username is binded in a combobox, and the password is a textbox

I want the textbox to match the password with the selected user in the database.

Here is what I have so far

Ms. Adams