Answer / dinesh

select max(sal) from (select max(sal) as sal from table a)
union
(select max(sal) as sal from table b)

ans:
sal
7000
6000

Answer / ankit kansal

Using Informaica

src-->>sq-->>rnk(sal,bottom,1)
-->>union-->>tgt
src-->>sq-->>rnk(sal,bottom,1)


http://deepinopensource.blogspot.in/

Answer / asdf

select id,name,max(sal) from table a;
select id,max(sal) from table b;

if u want to join two tables
select id,sal from table a,table b where a.id=b.id;

Answer / gd

select max(sal) from table a,table b in (select
a.id,a.name,a.sal,b.id.b.sal from table a, tableb where
a.id=b.id);

Answer / murali udayagiri

select greatest(sub.emp_max_sal,sub.emp1_max_sal) from
(select (select max(sal) from emp) emp_max_sal,(select max
(sal) from emp1) emp1_max_sal from dual) sub;



Thanks,
Murali Udayagiri

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