select id, name, pwd , date from table2
where DATE between '2016-01-01' and '2016-01-31'
intersect
select id, name, pwd , date from table1
where DATE between '2016-01-01' and '2016-01-31'
;with data as
(
select id, name, pwd , date from table1
where DATE between '2016-01-01' and '2016-01-31'
union
select id, name, pwd , date from table2
where DATE between '2016-01-01' and '2016-01-31'
)
select distinct name , DATE from data