how to display details from database into textbox?

Question

Hai Friends,
I ve the table like
create table users
(
user_id varchar(10),
username varchar(10),
password varchar(10),
designation varchar(10),
department varchar(10),
location varchar(10),
reportingto varchar(10)
)

insert into users(user_id,username,password,designation,department,location,reportingto)
value('0010','Ram','Ram@123','TraineeSalesMan','Marketing','Delhi','00001)
like Trainees reporting =>salesman
in my login.aspx page ll use username & password to make login.
after the login page redirects to empdetails.aspx
now my requirements is
1) welcome+username right corner
(from here the details ll display from database)
2)name of employee = textbox
3)designation =textbox
4)department =textbox
5)location = textbox
6)reportingto=textbox(0001 that related code name ll display on that textbox)


how to make a code?