mysql - add an extra column while select from two tables -


i have 2 tables me, web , mail. using query fetch data both tables. 

preparedstatement ps = con.preparestatement("(select * web name='abc') union (select * mail name='abc')"); resultset rs = ps.executequery(); while(rs.next()){       bw.write(rs3.getstring("name")+"~"+rs3.getstring("age")+"~"+rs3.getstring("profession"); bw.newline(); }

the output this.

+------+------+------------+ | name | age  | profession | +------+------+------------+ | abc  |   20 | doctor     | | abc  |   20 | engineer   | +------+------+------------+

and in file this

abc~20~doctor abc~20~engineer

but how can add column in result set give me data in format

abc~20~doctor~web abc~20~engineer~mail 

select * , 'web' source web name='abc' union select *, 'mail' source mail name ='abc'

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