stored procedure to search from a table with several condition

[Amit Rai]

suppose there are 3 textboxes and 1 search button.If we click on search button without filling any textfield, then
it display all data from the table.when we fill any field, then search according to the number of fields being filled.
here is the sp

create proc sp_search
@name varchar(10), @city varchar(10),@ad r varchar(10),que ry varchar(100)
as
begin
@query="select *from employee where 1=1";
if(@name!=null)
@query=@query+@ name;
if(@city !=null)
@query=@query+@ city;
if(@adr!=null)
@query=@query+@ city;
end

[gpl]

This will always return all rows, as your first condition is
where 1=1
no matter what other conditions you add, 1 will always be 1